Home / 748,901.30-1,123,351.95-720,907.70

Finding the Fourth Proportional to 748,901.30, 1,123,351.95 and 720,907.70

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Solution

The fourth proportional to 748,901.30, 1,123,351.95 and 720,907.70 is: 1,081,361.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,901.30 : 1,123,351.95 = 720,907.70 : x
  2. Step 2: Convert to fraction form
    748,901.30/1,123,351.95 = 720,907.70/x
  3. Step 3: Cross multiply
    748,901.30x = 1,123,351.95 × 720,907.70
  4. Step 4: Simplify right side
    748,901.30x = 809,833,070,565.02
  5. Step 5: Solve for x
    x = 809,833,070,565.02/748,901.30
  6. Step 6: Final answer
    x = 1,081,361.55

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Double scale
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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.