Home / 688,220.90-949,896.66-382,402.34

Finding the Fourth Proportional to 688,220.90, 949,896.66 and 382,402.34

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Solution

The fourth proportional to 688,220.90, 949,896.66 and 382,402.34 is: 527,799.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,220.90 : 949,896.66 = 382,402.34 : x
  2. Step 2: Convert to fraction form
    688,220.90/949,896.66 = 382,402.34/x
  3. Step 3: Cross multiply
    688,220.90x = 949,896.66 × 382,402.34
  4. Step 4: Simplify right side
    688,220.90x = 363,242,705,542.18
  5. Step 5: Solve for x
    x = 363,242,705,542.18/688,220.90
  6. Step 6: Final answer
    x = 527,799.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.