Home / 1,292,127.40-1,940,264.70-976,940.20

Finding the Fourth Proportional to 1,292,127.40, 1,940,264.70 and 976,940.20

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Solution

The fourth proportional to 1,292,127.40, 1,940,264.70 and 976,940.20 is: 1,466,978.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,127.40 : 1,940,264.70 = 976,940.20 : x
  2. Step 2: Convert to fraction form
    1,292,127.40/1,940,264.70 = 976,940.20/x
  3. Step 3: Cross multiply
    1,292,127.40x = 1,940,264.70 × 976,940.20
  4. Step 4: Simplify right side
    1,292,127.40x = 1,895,522,584,070.94
  5. Step 5: Solve for x
    x = 1,895,522,584,070.94/1,292,127.40
  6. Step 6: Final answer
    x = 1,466,978.09

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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.