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Finding the Fourth Proportional to 684,560.88, 944,404.74 and 458,279.28

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Solution

The fourth proportional to 684,560.88, 944,404.74 and 458,279.28 is: 632,231.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,560.88 : 944,404.74 = 458,279.28 : x
  2. Step 2: Convert to fraction form
    684,560.88/944,404.74 = 458,279.28/x
  3. Step 3: Cross multiply
    684,560.88x = 944,404.74 × 458,279.28
  4. Step 4: Simplify right side
    684,560.88x = 432,801,124,275.79
  5. Step 5: Solve for x
    x = 432,801,124,275.79/684,560.88
  6. Step 6: Final answer
    x = 632,231.75

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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.