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Finding the Fourth Proportional to 527,643, 790,151.52 and 369,129.24

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Solution

The fourth proportional to 527,643, 790,151.52 and 369,129.24 is: 552,775.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,643 : 790,151.52 = 369,129.24 : x
  2. Step 2: Convert to fraction form
    527,643/790,151.52 = 369,129.24/x
  3. Step 3: Cross multiply
    527,643x = 790,151.52 × 369,129.24
  4. Step 4: Simplify right side
    527,643x = 291,668,030,062.45
  5. Step 5: Solve for x
    x = 291,668,030,062.45/527,643
  6. Step 6: Final answer
    x = 552,775.32

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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.