Home / 1,295,061.40-1,942,592.10-917,147.80

Finding the Fourth Proportional to 1,295,061.40, 1,942,592.10 and 917,147.80

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Solution

The fourth proportional to 1,295,061.40, 1,942,592.10 and 917,147.80 is: 1,375,721.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,295,061.40 : 1,942,592.10 = 917,147.80 : x
  2. Step 2: Convert to fraction form
    1,295,061.40/1,942,592.10 = 917,147.80/x
  3. Step 3: Cross multiply
    1,295,061.40x = 1,942,592.10 × 917,147.80
  4. Step 4: Simplify right side
    1,295,061.40x = 1,781,644,070,812.38
  5. Step 5: Solve for x
    x = 1,781,644,070,812.38/1,295,061.40
  6. Step 6: Final answer
    x = 1,375,721.70

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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.