Home / 739,500.32-1,020,422.67-417,191.60

Finding the Fourth Proportional to 739,500.32, 1,020,422.67 and 417,191.60

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Solution

The fourth proportional to 739,500.32, 1,020,422.67 and 417,191.60 is: 575,674.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,500.32 : 1,020,422.67 = 417,191.60 : x
  2. Step 2: Convert to fraction form
    739,500.32/1,020,422.67 = 417,191.60/x
  3. Step 3: Cross multiply
    739,500.32x = 1,020,422.67 × 417,191.60
  4. Step 4: Simplify right side
    739,500.32x = 425,711,766,373.57
  5. Step 5: Solve for x
    x = 425,711,766,373.57/739,500.32
  6. Step 6: Final answer
    x = 575,674.89

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Double scale
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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.