Home / 900,126.90-1,242,156.33-492,224.13

Finding the Fourth Proportional to 900,126.90, 1,242,156.33 and 492,224.13

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Solution

The fourth proportional to 900,126.90, 1,242,156.33 and 492,224.13 is: 679,259.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,126.90 : 1,242,156.33 = 492,224.13 : x
  2. Step 2: Convert to fraction form
    900,126.90/1,242,156.33 = 492,224.13/x
  3. Step 3: Cross multiply
    900,126.90x = 1,242,156.33 × 492,224.13
  4. Step 4: Simplify right side
    900,126.90x = 611,419,318,858.24
  5. Step 5: Solve for x
    x = 611,419,318,858.24/900,126.90
  6. Step 6: Final answer
    x = 679,259.02

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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.