Home / 754,118.40-1,131,118.80-438,373.92

Finding the Fourth Proportional to 754,118.40, 1,131,118.80 and 438,373.92

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Solution

The fourth proportional to 754,118.40, 1,131,118.80 and 438,373.92 is: 657,526.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,118.40 : 1,131,118.80 = 438,373.92 : x
  2. Step 2: Convert to fraction form
    754,118.40/1,131,118.80 = 438,373.92/x
  3. Step 3: Cross multiply
    754,118.40x = 1,131,118.80 × 438,373.92
  4. Step 4: Simplify right side
    754,118.40x = 495,852,982,341.70
  5. Step 5: Solve for x
    x = 495,852,982,341.70/754,118.40
  6. Step 6: Final answer
    x = 657,526.70

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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.