Home / 747,734.40-1,121,601.60-665,065.80

Finding the Fourth Proportional to 747,734.40, 1,121,601.60 and 665,065.80

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Solution

The fourth proportional to 747,734.40, 1,121,601.60 and 665,065.80 is: 997,598.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    747,734.40 : 1,121,601.60 = 665,065.80 : x
  2. Step 2: Convert to fraction form
    747,734.40/1,121,601.60 = 665,065.80/x
  3. Step 3: Cross multiply
    747,734.40x = 1,121,601.60 × 665,065.80
  4. Step 4: Simplify right side
    747,734.40x = 745,938,865,385.28
  5. Step 5: Solve for x
    x = 745,938,865,385.28/747,734.40
  6. Step 6: Final answer
    x = 997,598.70

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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.