Home / 688,982.61-1,033,407.09-209,214.57

Finding the Fourth Proportional to 688,982.61, 1,033,407.09 and 209,214.57

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Solution

The fourth proportional to 688,982.61, 1,033,407.09 and 209,214.57 is: 313,801.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,982.61 : 1,033,407.09 = 209,214.57 : x
  2. Step 2: Convert to fraction form
    688,982.61/1,033,407.09 = 209,214.57/x
  3. Step 3: Cross multiply
    688,982.61x = 1,033,407.09 × 209,214.57
  4. Step 4: Simplify right side
    688,982.61x = 216,203,820,349.70
  5. Step 5: Solve for x
    x = 216,203,820,349.70/688,982.61
  6. Step 6: Final answer
    x = 313,801.56

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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.