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Finding the Fourth Proportional to 477,018.08, 715,722.84 and 252,318.40

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Solution

The fourth proportional to 477,018.08, 715,722.84 and 252,318.40 is: 378,581.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,018.08 : 715,722.84 = 252,318.40 : x
  2. Step 2: Convert to fraction form
    477,018.08/715,722.84 = 252,318.40/x
  3. Step 3: Cross multiply
    477,018.08x = 715,722.84 × 252,318.40
  4. Step 4: Simplify right side
    477,018.08x = 180,590,041,832.26
  5. Step 5: Solve for x
    x = 180,590,041,832.26/477,018.08
  6. Step 6: Final answer
    x = 378,581.13

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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.