Home / 688,022.20-1,029,959.70-613,372.60

Finding the Fourth Proportional to 688,022.20, 1,029,959.70 and 613,372.60

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Solution

The fourth proportional to 688,022.20, 1,029,959.70 and 613,372.60 is: 918,210.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,022.20 : 1,029,959.70 = 613,372.60 : x
  2. Step 2: Convert to fraction form
    688,022.20/1,029,959.70 = 613,372.60/x
  3. Step 3: Cross multiply
    688,022.20x = 1,029,959.70 × 613,372.60
  4. Step 4: Simplify right side
    688,022.20x = 631,749,059,084.22
  5. Step 5: Solve for x
    x = 631,749,059,084.22/688,022.20
  6. Step 6: Final answer
    x = 918,210.28

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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.