Home / 900,177.76-1,242,238.44-492,277.96

Finding the Fourth Proportional to 900,177.76, 1,242,238.44 and 492,277.96

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Solution

The fourth proportional to 900,177.76, 1,242,238.44 and 492,277.96 is: 679,339.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,177.76 : 1,242,238.44 = 492,277.96 : x
  2. Step 2: Convert to fraction form
    900,177.76/1,242,238.44 = 492,277.96/x
  3. Step 3: Cross multiply
    900,177.76x = 1,242,238.44 × 492,277.96
  4. Step 4: Simplify right side
    900,177.76x = 611,526,605,076.78
  5. Step 5: Solve for x
    x = 611,526,605,076.78/900,177.76
  6. Step 6: Final answer
    x = 679,339.83

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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.