Home / 876,665.40-1,314,998.10-478,084.65

Finding the Fourth Proportional to 876,665.40, 1,314,998.10 and 478,084.65

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Solution

The fourth proportional to 876,665.40, 1,314,998.10 and 478,084.65 is: 717,126.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    876,665.40 : 1,314,998.10 = 478,084.65 : x
  2. Step 2: Convert to fraction form
    876,665.40/1,314,998.10 = 478,084.65/x
  3. Step 3: Cross multiply
    876,665.40x = 1,314,998.10 × 478,084.65
  4. Step 4: Simplify right side
    876,665.40x = 628,680,406,389.17
  5. Step 5: Solve for x
    x = 628,680,406,389.17/876,665.40
  6. Step 6: Final answer
    x = 717,126.98

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Double scale
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Similar ratio
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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.