Home / 900,286.38-1,242,349.14-492,308.92

Finding the Fourth Proportional to 900,286.38, 1,242,349.14 and 492,308.92

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Solution

The fourth proportional to 900,286.38, 1,242,349.14 and 492,308.92 is: 679,361.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,286.38 : 1,242,349.14 = 492,308.92 : x
  2. Step 2: Convert to fraction form
    900,286.38/1,242,349.14 = 492,308.92/x
  3. Step 3: Cross multiply
    900,286.38x = 1,242,349.14 × 492,308.92
  4. Step 4: Simplify right side
    900,286.38x = 611,619,566,775.42
  5. Step 5: Solve for x
    x = 611,619,566,775.42/900,286.38
  6. Step 6: Final answer
    x = 679,361.12

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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.