Home / 1,026,678.74-1,538,932.12-386,705.57

Finding the Fourth Proportional to 1,026,678.74, 1,538,932.12 and 386,705.57

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Solution

The fourth proportional to 1,026,678.74, 1,538,932.12 and 386,705.57 is: 579,649.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,678.74 : 1,538,932.12 = 386,705.57 : x
  2. Step 2: Convert to fraction form
    1,026,678.74/1,538,932.12 = 386,705.57/x
  3. Step 3: Cross multiply
    1,026,678.74x = 1,538,932.12 × 386,705.57
  4. Step 4: Simplify right side
    1,026,678.74x = 595,113,622,655.91
  5. Step 5: Solve for x
    x = 595,113,622,655.91/1,026,678.74
  6. Step 6: Final answer
    x = 579,649.31

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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.