Home / 1,292,726.40-1,939,089.60-654,997.20

Finding the Fourth Proportional to 1,292,726.40, 1,939,089.60 and 654,997.20

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Solution

The fourth proportional to 1,292,726.40, 1,939,089.60 and 654,997.20 is: 982,495.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,292,726.40 : 1,939,089.60 = 654,997.20 : x
  2. Step 2: Convert to fraction form
    1,292,726.40/1,939,089.60 = 654,997.20/x
  3. Step 3: Cross multiply
    1,292,726.40x = 1,939,089.60 × 654,997.20
  4. Step 4: Simplify right side
    1,292,726.40x = 1,270,098,258,549.12
  5. Step 5: Solve for x
    x = 1,270,098,258,549.12/1,292,726.40
  6. Step 6: Final answer
    x = 982,495.80

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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.