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Finding the Fourth Proportional to 637,291.40, 879,461.88 and 350,810

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Solution

The fourth proportional to 637,291.40, 879,461.88 and 350,810 is: 484,117.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,291.40 : 879,461.88 = 350,810 : x
  2. Step 2: Convert to fraction form
    637,291.40/879,461.88 = 350,810/x
  3. Step 3: Cross multiply
    637,291.40x = 879,461.88 × 350,810
  4. Step 4: Simplify right side
    637,291.40x = 308,524,022,122.80
  5. Step 5: Solve for x
    x = 308,524,022,122.80/637,291.40
  6. Step 6: Final answer
    x = 484,117.66

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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.