Home / 1,540,686.02-2,126,139.45-861,625.22

Finding the Fourth Proportional to 1,540,686.02, 2,126,139.45 and 861,625.22

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Solution

The fourth proportional to 1,540,686.02, 2,126,139.45 and 861,625.22 is: 1,189,038.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,540,686.02 : 2,126,139.45 = 861,625.22 : x
  2. Step 2: Convert to fraction form
    1,540,686.02/2,126,139.45 = 861,625.22/x
  3. Step 3: Cross multiply
    1,540,686.02x = 2,126,139.45 × 861,625.22
  4. Step 4: Simplify right side
    1,540,686.02x = 1,831,935,371,356.93
  5. Step 5: Solve for x
    x = 1,831,935,371,356.93/1,540,686.02
  6. Step 6: Final answer
    x = 1,189,038.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.