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Finding the Fourth Proportional to 478,882.72, 660,862.83 and 264,031.30

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Solution

The fourth proportional to 478,882.72, 660,862.83 and 264,031.30 is: 364,365.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,882.72 : 660,862.83 = 264,031.30 : x
  2. Step 2: Convert to fraction form
    478,882.72/660,862.83 = 264,031.30/x
  3. Step 3: Cross multiply
    478,882.72x = 660,862.83 × 264,031.30
  4. Step 4: Simplify right side
    478,882.72x = 174,488,472,126.58
  5. Step 5: Solve for x
    x = 174,488,472,126.58/478,882.72
  6. Step 6: Final answer
    x = 364,365.77

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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.