Home / 900,548.30-1,242,766.46-492,641.38

Finding the Fourth Proportional to 900,548.30, 1,242,766.46 and 492,641.38

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Solution

The fourth proportional to 900,548.30, 1,242,766.46 and 492,641.38 is: 679,850.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,548.30 : 1,242,766.46 = 492,641.38 : x
  2. Step 2: Convert to fraction form
    900,548.30/1,242,766.46 = 492,641.38/x
  3. Step 3: Cross multiply
    900,548.30x = 1,242,766.46 × 492,641.38
  4. Step 4: Simplify right side
    900,548.30x = 612,238,190,152.46
  5. Step 5: Solve for x
    x = 612,238,190,152.46/900,548.30
  6. Step 6: Final answer
    x = 679,850.48

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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.