Home / 754,114.40-1,131,112.80-438,369.92

Finding the Fourth Proportional to 754,114.40, 1,131,112.80 and 438,369.92

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Solution

The fourth proportional to 754,114.40, 1,131,112.80 and 438,369.92 is: 657,520.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    754,114.40 : 1,131,112.80 = 438,369.92 : x
  2. Step 2: Convert to fraction form
    754,114.40/1,131,112.80 = 438,369.92/x
  3. Step 3: Cross multiply
    754,114.40x = 1,131,112.80 × 438,369.92
  4. Step 4: Simplify right side
    754,114.40x = 495,845,827,646.98
  5. Step 5: Solve for x
    x = 495,845,827,646.98/754,114.40
  6. Step 6: Final answer
    x = 657,520.70

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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.