Home / 691,663.80-1,034,385.30-579,689.40

Finding the Fourth Proportional to 691,663.80, 1,034,385.30 and 579,689.40

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Solution

The fourth proportional to 691,663.80, 1,034,385.30 and 579,689.40 is: 866,927.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,663.80 : 1,034,385.30 = 579,689.40 : x
  2. Step 2: Convert to fraction form
    691,663.80/1,034,385.30 = 579,689.40/x
  3. Step 3: Cross multiply
    691,663.80x = 1,034,385.30 × 579,689.40
  4. Step 4: Simplify right side
    691,663.80x = 599,622,193,925.82
  5. Step 5: Solve for x
    x = 599,622,193,925.82/691,663.80
  6. Step 6: Final answer
    x = 866,927.25

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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.