Home / 1,207,479.27-1,666,358.90-663,605.18

Finding the Fourth Proportional to 1,207,479.27, 1,666,358.90 and 663,605.18

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Solution

The fourth proportional to 1,207,479.27, 1,666,358.90 and 663,605.18 is: 915,795.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,479.27 : 1,666,358.90 = 663,605.18 : x
  2. Step 2: Convert to fraction form
    1,207,479.27/1,666,358.90 = 663,605.18/x
  3. Step 3: Cross multiply
    1,207,479.27x = 1,666,358.90 × 663,605.18
  4. Step 4: Simplify right side
    1,207,479.27x = 1,105,804,397,779.10
  5. Step 5: Solve for x
    x = 1,105,804,397,779.10/1,207,479.27
  6. Step 6: Final answer
    x = 915,795.76

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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.