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Finding the Fourth Proportional to 637,196.88, 879,324.80 and 350,710.76

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Solution

The fourth proportional to 637,196.88, 879,324.80 and 350,710.76 is: 483,977.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,196.88 : 879,324.80 = 350,710.76 : x
  2. Step 2: Convert to fraction form
    637,196.88/879,324.80 = 350,710.76/x
  3. Step 3: Cross multiply
    637,196.88x = 879,324.80 × 350,710.76
  4. Step 4: Simplify right side
    637,196.88x = 308,388,668,894.85
  5. Step 5: Solve for x
    x = 308,388,668,894.85/637,196.88
  6. Step 6: Final answer
    x = 483,977.05

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.