Home / 745,198.20-1,117,943.10-318,733.20

Finding the Fourth Proportional to 745,198.20, 1,117,943.10 and 318,733.20

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Solution

The fourth proportional to 745,198.20, 1,117,943.10 and 318,733.20 is: 478,162.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    745,198.20 : 1,117,943.10 = 318,733.20 : x
  2. Step 2: Convert to fraction form
    745,198.20/1,117,943.10 = 318,733.20/x
  3. Step 3: Cross multiply
    745,198.20x = 1,117,943.10 × 318,733.20
  4. Step 4: Simplify right side
    745,198.20x = 356,325,581,680.92
  5. Step 5: Solve for x
    x = 356,325,581,680.92/745,198.20
  6. Step 6: Final answer
    x = 478,162.16

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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.