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Finding the Fourth Proportional to 623,792.70, 860,839.06 and 344,398.90

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Solution

The fourth proportional to 623,792.70, 860,839.06 and 344,398.90 is: 475,273.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    623,792.70 : 860,839.06 = 344,398.90 : x
  2. Step 2: Convert to fraction form
    623,792.70/860,839.06 = 344,398.90/x
  3. Step 3: Cross multiply
    623,792.70x = 860,839.06 × 344,398.90
  4. Step 4: Simplify right side
    623,792.70x = 296,472,025,341.03
  5. Step 5: Solve for x
    x = 296,472,025,341.03/623,792.70
  6. Step 6: Final answer
    x = 475,273.32

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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.