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Finding the Fourth Proportional to 644,068.38, 888,773.24 and 357,588.38

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Solution

The fourth proportional to 644,068.38, 888,773.24 and 357,588.38 is: 493,449.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    644,068.38 : 888,773.24 = 357,588.38 : x
  2. Step 2: Convert to fraction form
    644,068.38/888,773.24 = 357,588.38/x
  3. Step 3: Cross multiply
    644,068.38x = 888,773.24 × 357,588.38
  4. Step 4: Simplify right side
    644,068.38x = 317,814,983,078.95
  5. Step 5: Solve for x
    x = 317,814,983,078.95/644,068.38
  6. Step 6: Final answer
    x = 493,449.13

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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.