Home / 642,935.04-887,226.24-356,459.52

Finding the Fourth Proportional to 642,935.04, 887,226.24 and 356,459.52

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Solution

The fourth proportional to 642,935.04, 887,226.24 and 356,459.52 is: 491,900.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,935.04 : 887,226.24 = 356,459.52 : x
  2. Step 2: Convert to fraction form
    642,935.04/887,226.24 = 356,459.52/x
  3. Step 3: Cross multiply
    642,935.04x = 887,226.24 × 356,459.52
  4. Step 4: Simplify right side
    642,935.04x = 316,260,239,641.81
  5. Step 5: Solve for x
    x = 316,260,239,641.81/642,935.04
  6. Step 6: Final answer
    x = 491,900.77

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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.