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Finding the Fourth Proportional to 622,073.40, 933,110.10 and 423,007.80

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Solution

The fourth proportional to 622,073.40, 933,110.10 and 423,007.80 is: 634,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,073.40 : 933,110.10 = 423,007.80 : x
  2. Step 2: Convert to fraction form
    622,073.40/933,110.10 = 423,007.80/x
  3. Step 3: Cross multiply
    622,073.40x = 933,110.10 × 423,007.80
  4. Step 4: Simplify right side
    622,073.40x = 394,712,850,558.78
  5. Step 5: Solve for x
    x = 394,712,850,558.78/622,073.40
  6. Step 6: Final answer
    x = 634,511.70

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.