Home / 900,685.44-1,242,889.92-498,277.44

Finding the Fourth Proportional to 900,685.44, 1,242,889.92 and 498,277.44

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Solution

The fourth proportional to 900,685.44, 1,242,889.92 and 498,277.44 is: 687,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,685.44 : 1,242,889.92 = 498,277.44 : x
  2. Step 2: Convert to fraction form
    900,685.44/1,242,889.92 = 498,277.44/x
  3. Step 3: Cross multiply
    900,685.44x = 1,242,889.92 × 498,277.44
  4. Step 4: Simplify right side
    900,685.44x = 619,304,007,539.41
  5. Step 5: Solve for x
    x = 619,304,007,539.41/900,685.44
  6. Step 6: Final answer
    x = 687,591.89

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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.