Home / 2,087,780.29-3,130,902.25-721,206.20

Finding the Fourth Proportional to 2,087,780.29, 3,130,902.25 and 721,206.20

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Solution

The fourth proportional to 2,087,780.29, 3,130,902.25 and 721,206.20 is: 1,081,543.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,780.29 : 3,130,902.25 = 721,206.20 : x
  2. Step 2: Convert to fraction form
    2,087,780.29/3,130,902.25 = 721,206.20/x
  3. Step 3: Cross multiply
    2,087,780.29x = 3,130,902.25 × 721,206.20
  4. Step 4: Simplify right side
    2,087,780.29x = 2,258,026,120,318.19
  5. Step 5: Solve for x
    x = 2,258,026,120,318.19/2,087,780.29
  6. Step 6: Final answer
    x = 1,081,543.94

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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.