Home / 739,452.35-1,020,444.24-399,920.60

Finding the Fourth Proportional to 739,452.35, 1,020,444.24 and 399,920.60

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Solution

The fourth proportional to 739,452.35, 1,020,444.24 and 399,920.60 is: 551,890.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,452.35 : 1,020,444.24 = 399,920.60 : x
  2. Step 2: Convert to fraction form
    739,452.35/1,020,444.24 = 399,920.60/x
  3. Step 3: Cross multiply
    739,452.35x = 1,020,444.24 × 399,920.60
  4. Step 4: Simplify right side
    739,452.35x = 408,096,672,727.34
  5. Step 5: Solve for x
    x = 408,096,672,727.34/739,452.35
  6. Step 6: Final answer
    x = 551,890.43

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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.