Home / 1,218,139.58-1,680,646.17-708,743.54

Finding the Fourth Proportional to 1,218,139.58, 1,680,646.17 and 708,743.54

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Solution

The fourth proportional to 1,218,139.58, 1,680,646.17 and 708,743.54 is: 977,841.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,139.58 : 1,680,646.17 = 708,743.54 : x
  2. Step 2: Convert to fraction form
    1,218,139.58/1,680,646.17 = 708,743.54/x
  3. Step 3: Cross multiply
    1,218,139.58x = 1,680,646.17 × 708,743.54
  4. Step 4: Simplify right side
    1,218,139.58x = 1,191,147,116,013.24
  5. Step 5: Solve for x
    x = 1,191,147,116,013.24/1,218,139.58
  6. Step 6: Final answer
    x = 977,841.24

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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.