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Finding the Fourth Proportional to 624,151.34, 861,351 and 352,285.40

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Solution

The fourth proportional to 624,151.34, 861,351 and 352,285.40 is: 486,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    624,151.34 : 861,351 = 352,285.40 : x
  2. Step 2: Convert to fraction form
    624,151.34/861,351 = 352,285.40/x
  3. Step 3: Cross multiply
    624,151.34x = 861,351 × 352,285.40
  4. Step 4: Simplify right side
    624,151.34x = 303,441,381,575.40
  5. Step 5: Solve for x
    x = 303,441,381,575.40/624,151.34
  6. Step 6: Final answer
    x = 486,166.35

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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.