Home / 748,902.30-1,123,353.45-720,908.70

Finding the Fourth Proportional to 748,902.30, 1,123,353.45 and 720,908.70

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Solution

The fourth proportional to 748,902.30, 1,123,353.45 and 720,908.70 is: 1,081,363.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,902.30 : 1,123,353.45 = 720,908.70 : x
  2. Step 2: Convert to fraction form
    748,902.30/1,123,353.45 = 720,908.70/x
  3. Step 3: Cross multiply
    748,902.30x = 1,123,353.45 × 720,908.70
  4. Step 4: Simplify right side
    748,902.30x = 809,835,275,280.02
  5. Step 5: Solve for x
    x = 809,835,275,280.02/748,902.30
  6. Step 6: Final answer
    x = 1,081,363.05

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1.5x scale

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.