Home / 642,824.00-887,037.48-356,319.71

Finding the Fourth Proportional to 642,824.00, 887,037.48 and 356,319.71

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Solution

The fourth proportional to 642,824.00, 887,037.48 and 356,319.71 is: 491,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,824.00 : 887,037.48 = 356,319.71 : x
  2. Step 2: Convert to fraction form
    642,824.00/887,037.48 = 356,319.71/x
  3. Step 3: Cross multiply
    642,824.00x = 887,037.48 × 356,319.71
  4. Step 4: Simplify right side
    642,824.00x = 316,068,939,850.33
  5. Step 5: Solve for x
    x = 316,068,939,850.33/642,824.00
  6. Step 6: Final answer
    x = 491,688.14

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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.