Home / 688,921.40-1,034,159.70-531,846.20

Finding the Fourth Proportional to 688,921.40, 1,034,159.70 and 531,846.20

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Solution

The fourth proportional to 688,921.40, 1,034,159.70 and 531,846.20 is: 798,369.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,921.40 : 1,034,159.70 = 531,846.20 : x
  2. Step 2: Convert to fraction form
    688,921.40/1,034,159.70 = 531,846.20/x
  3. Step 3: Cross multiply
    688,921.40x = 1,034,159.70 × 531,846.20
  4. Step 4: Simplify right side
    688,921.40x = 550,013,906,638.14
  5. Step 5: Solve for x
    x = 550,013,906,638.14/688,921.40
  6. Step 6: Final answer
    x = 798,369.61

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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.