Home / 654,305.10-902,878.83-382,436.70

Finding the Fourth Proportional to 654,305.10, 902,878.83 and 382,436.70

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Solution

The fourth proportional to 654,305.10, 902,878.83 and 382,436.70 is: 527,726.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,305.10 : 902,878.83 = 382,436.70 : x
  2. Step 2: Convert to fraction form
    654,305.10/902,878.83 = 382,436.70/x
  3. Step 3: Cross multiply
    654,305.10x = 902,878.83 × 382,436.70
  4. Step 4: Simplify right side
    654,305.10x = 345,294,000,245.06
  5. Step 5: Solve for x
    x = 345,294,000,245.06/654,305.10
  6. Step 6: Final answer
    x = 527,726.29

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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.