Home / 900,882.62-1,243,218.13-492,984.55

Finding the Fourth Proportional to 900,882.62, 1,243,218.13 and 492,984.55

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Solution

The fourth proportional to 900,882.62, 1,243,218.13 and 492,984.55 is: 680,318.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,882.62 : 1,243,218.13 = 492,984.55 : x
  2. Step 2: Convert to fraction form
    900,882.62/1,243,218.13 = 492,984.55/x
  3. Step 3: Cross multiply
    900,882.62x = 1,243,218.13 × 492,984.55
  4. Step 4: Simplify right side
    900,882.62x = 612,887,330,369.89
  5. Step 5: Solve for x
    x = 612,887,330,369.89/900,882.62
  6. Step 6: Final answer
    x = 680,318.74

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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.