Home / 1,387,333.93-2,081,000.90-390,061.93

Finding the Fourth Proportional to 1,387,333.93, 2,081,000.90 and 390,061.93

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Solution

The fourth proportional to 1,387,333.93, 2,081,000.90 and 390,061.93 is: 585,092.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,387,333.93 : 2,081,000.90 = 390,061.93 : x
  2. Step 2: Convert to fraction form
    1,387,333.93/2,081,000.90 = 390,061.93/x
  3. Step 3: Cross multiply
    1,387,333.93x = 2,081,000.90 × 390,061.93
  4. Step 4: Simplify right side
    1,387,333.93x = 811,719,225,435.43
  5. Step 5: Solve for x
    x = 811,719,225,435.43/1,387,333.93
  6. Step 6: Final answer
    x = 585,092.90

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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.