Home / 739,175.90-1,020,060.50-399,644.16

Finding the Fourth Proportional to 739,175.90, 1,020,060.50 and 399,644.16

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Solution

The fourth proportional to 739,175.90, 1,020,060.50 and 399,644.16 is: 551,507.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,175.90 : 1,020,060.50 = 399,644.16 : x
  2. Step 2: Convert to fraction form
    739,175.90/1,020,060.50 = 399,644.16/x
  3. Step 3: Cross multiply
    739,175.90x = 1,020,060.50 × 399,644.16
  4. Step 4: Simplify right side
    739,175.90x = 407,661,221,671.68
  5. Step 5: Solve for x
    x = 407,661,221,671.68/739,175.90
  6. Step 6: Final answer
    x = 551,507.73

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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.