Home / 915,770.40-1,373,266.80-442,600.80

Finding the Fourth Proportional to 915,770.40, 1,373,266.80 and 442,600.80

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Solution

The fourth proportional to 915,770.40, 1,373,266.80 and 442,600.80 is: 663,713.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    915,770.40 : 1,373,266.80 = 442,600.80 : x
  2. Step 2: Convert to fraction form
    915,770.40/1,373,266.80 = 442,600.80/x
  3. Step 3: Cross multiply
    915,770.40x = 1,373,266.80 × 442,600.80
  4. Step 4: Simplify right side
    915,770.40x = 607,808,984,293.44
  5. Step 5: Solve for x
    x = 607,808,984,293.44/915,770.40
  6. Step 6: Final answer
    x = 663,713.29

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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.