Home / 527,613.72-727,826.13-320,945.29

Finding the Fourth Proportional to 527,613.72, 727,826.13 and 320,945.29

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Solution

The fourth proportional to 527,613.72, 727,826.13 and 320,945.29 is: 442,733.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    527,613.72 : 727,826.13 = 320,945.29 : x
  2. Step 2: Convert to fraction form
    527,613.72/727,826.13 = 320,945.29/x
  3. Step 3: Cross multiply
    527,613.72x = 727,826.13 × 320,945.29
  4. Step 4: Simplify right side
    527,613.72x = 233,592,369,272.21
  5. Step 5: Solve for x
    x = 233,592,369,272.21/527,613.72
  6. Step 6: Final answer
    x = 442,733.69

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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.