Home / 689,911.10-1,034,866.65-657,251.90

Finding the Fourth Proportional to 689,911.10, 1,034,866.65 and 657,251.90

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Solution

The fourth proportional to 689,911.10, 1,034,866.65 and 657,251.90 is: 985,877.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,911.10 : 1,034,866.65 = 657,251.90 : x
  2. Step 2: Convert to fraction form
    689,911.10/1,034,866.65 = 657,251.90/x
  3. Step 3: Cross multiply
    689,911.10x = 1,034,866.65 × 657,251.90
  4. Step 4: Simplify right side
    689,911.10x = 680,168,071,959.14
  5. Step 5: Solve for x
    x = 680,168,071,959.14/689,911.10
  6. Step 6: Final answer
    x = 985,877.85

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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.