Home / 780,320.92-1,162,253.11-745,309.67

Finding the Fourth Proportional to 780,320.92, 1,162,253.11 and 745,309.67

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Solution

The fourth proportional to 780,320.92, 1,162,253.11 and 745,309.67 is: 1,110,105.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,320.92 : 1,162,253.11 = 745,309.67 : x
  2. Step 2: Convert to fraction form
    780,320.92/1,162,253.11 = 745,309.67/x
  3. Step 3: Cross multiply
    780,320.92x = 1,162,253.11 × 745,309.67
  4. Step 4: Simplify right side
    780,320.92x = 866,238,472,332.76
  5. Step 5: Solve for x
    x = 866,238,472,332.76/780,320.92
  6. Step 6: Final answer
    x = 1,110,105.41

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.