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Finding the Fourth Proportional to 587,227.20, 810,502.56 and 386,041.92

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Solution

The fourth proportional to 587,227.20, 810,502.56 and 386,041.92 is: 532,822.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,227.20 : 810,502.56 = 386,041.92 : x
  2. Step 2: Convert to fraction form
    587,227.20/810,502.56 = 386,041.92/x
  3. Step 3: Cross multiply
    587,227.20x = 810,502.56 × 386,041.92
  4. Step 4: Simplify right side
    587,227.20x = 312,887,964,427.32
  5. Step 5: Solve for x
    x = 312,887,964,427.32/587,227.20
  6. Step 6: Final answer
    x = 532,822.67

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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.