Home / 1,129,294.40-1,558,428.90-620,029.58

Finding the Fourth Proportional to 1,129,294.40, 1,558,428.90 and 620,029.58

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Solution

The fourth proportional to 1,129,294.40, 1,558,428.90 and 620,029.58 is: 855,642.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,294.40 : 1,558,428.90 = 620,029.58 : x
  2. Step 2: Convert to fraction form
    1,129,294.40/1,558,428.90 = 620,029.58/x
  3. Step 3: Cross multiply
    1,129,294.40x = 1,558,428.90 × 620,029.58
  4. Step 4: Simplify right side
    1,129,294.40x = 966,272,016,326.86
  5. Step 5: Solve for x
    x = 966,272,016,326.86/1,129,294.40
  6. Step 6: Final answer
    x = 855,642.26

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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.