Home / 578,066.07-865,976.94-425,987.10

Finding the Fourth Proportional to 578,066.07, 865,976.94 and 425,987.10

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Solution

The fourth proportional to 578,066.07, 865,976.94 and 425,987.10 is: 638,153.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,066.07 : 865,976.94 = 425,987.10 : x
  2. Step 2: Convert to fraction form
    578,066.07/865,976.94 = 425,987.10/x
  3. Step 3: Cross multiply
    578,066.07x = 865,976.94 × 425,987.10
  4. Step 4: Simplify right side
    578,066.07x = 368,895,005,337.47
  5. Step 5: Solve for x
    x = 368,895,005,337.47/578,066.07
  6. Step 6: Final answer
    x = 638,153.71

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Double scale
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Similar ratio
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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.