Home / 654,290.10-902,858.13-382,421.70

Finding the Fourth Proportional to 654,290.10, 902,858.13 and 382,421.70

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Solution

The fourth proportional to 654,290.10, 902,858.13 and 382,421.70 is: 527,705.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,290.10 : 902,858.13 = 382,421.70 : x
  2. Step 2: Convert to fraction form
    654,290.10/902,858.13 = 382,421.70/x
  3. Step 3: Cross multiply
    654,290.10x = 902,858.13 × 382,421.70
  4. Step 4: Simplify right side
    654,290.10x = 345,272,540,933.42
  5. Step 5: Solve for x
    x = 345,272,540,933.42/654,290.10
  6. Step 6: Final answer
    x = 527,705.59

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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.