Home / 739,308.80-1,020,244.92-399,776.24

Finding the Fourth Proportional to 739,308.80, 1,020,244.92 and 399,776.24

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Solution

The fourth proportional to 739,308.80, 1,020,244.92 and 399,776.24 is: 551,690.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,308.80 : 1,020,244.92 = 399,776.24 : x
  2. Step 2: Convert to fraction form
    739,308.80/1,020,244.92 = 399,776.24/x
  3. Step 3: Cross multiply
    739,308.80x = 1,020,244.92 × 399,776.24
  4. Step 4: Simplify right side
    739,308.80x = 407,869,677,996.70
  5. Step 5: Solve for x
    x = 407,869,677,996.70/739,308.80
  6. Step 6: Final answer
    x = 551,690.55

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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.