Home / 745,581.20-1,117,265.84-547,621.52

Finding the Fourth Proportional to 745,581.20, 1,117,265.84 and 547,621.52

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Solution

The fourth proportional to 745,581.20, 1,117,265.84 and 547,621.52 is: 820,619.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,581.20 : 1,117,265.84 = 547,621.52 : x
  2. Step 2: Convert to fraction form
    745,581.20/1,117,265.84 = 547,621.52/x
  3. Step 3: Cross multiply
    745,581.20x = 1,117,265.84 × 547,621.52
  4. Step 4: Simplify right side
    745,581.20x = 611,838,817,544.88
  5. Step 5: Solve for x
    x = 611,838,817,544.88/745,581.20
  6. Step 6: Final answer
    x = 820,619.96

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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.