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Finding the Fourth Proportional to 687,495.35, 948,917.98 and 469,792.14

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Solution

The fourth proportional to 687,495.35, 948,917.98 and 469,792.14 is: 648,432.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    687,495.35 : 948,917.98 = 469,792.14 : x
  2. Step 2: Convert to fraction form
    687,495.35/948,917.98 = 469,792.14/x
  3. Step 3: Cross multiply
    687,495.35x = 948,917.98 × 469,792.14
  4. Step 4: Simplify right side
    687,495.35x = 445,794,206,159.72
  5. Step 5: Solve for x
    x = 445,794,206,159.72/687,495.35
  6. Step 6: Final answer
    x = 648,432.33

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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.