Home / 763,500.15-1,145,250.23-745,785.45

Finding the Fourth Proportional to 763,500.15, 1,145,250.23 and 745,785.45

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Solution

The fourth proportional to 763,500.15, 1,145,250.23 and 745,785.45 is: 1,118,678.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,500.15 : 1,145,250.23 = 745,785.45 : x
  2. Step 2: Convert to fraction form
    763,500.15/1,145,250.23 = 745,785.45/x
  3. Step 3: Cross multiply
    763,500.15x = 1,145,250.23 × 745,785.45
  4. Step 4: Simplify right side
    763,500.15x = 854,110,954,414.23
  5. Step 5: Solve for x
    x = 854,110,954,414.23/763,500.15
  6. Step 6: Final answer
    x = 1,118,678.18

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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.