Home / 637,266.78-879,421.32-350,780.76

Finding the Fourth Proportional to 637,266.78, 879,421.32 and 350,780.76

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Solution

The fourth proportional to 637,266.78, 879,421.32 and 350,780.76 is: 484,073.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,266.78 : 879,421.32 = 350,780.76 : x
  2. Step 2: Convert to fraction form
    637,266.78/879,421.32 = 350,780.76/x
  3. Step 3: Cross multiply
    637,266.78x = 879,421.32 × 350,780.76
  4. Step 4: Simplify right side
    637,266.78x = 308,484,078,989.80
  5. Step 5: Solve for x
    x = 308,484,078,989.80/637,266.78
  6. Step 6: Final answer
    x = 484,073.69

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Double scale
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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.