Home / 900,287.38-1,242,350.52-492,309.92

Finding the Fourth Proportional to 900,287.38, 1,242,350.52 and 492,309.92

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Solution

The fourth proportional to 900,287.38, 1,242,350.52 and 492,309.92 is: 679,362.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,287.38 : 1,242,350.52 = 492,309.92 : x
  2. Step 2: Convert to fraction form
    900,287.38/1,242,350.52 = 492,309.92/x
  3. Step 3: Cross multiply
    900,287.38x = 1,242,350.52 × 492,309.92
  4. Step 4: Simplify right side
    900,287.38x = 611,621,485,113.16
  5. Step 5: Solve for x
    x = 611,621,485,113.16/900,287.38
  6. Step 6: Final answer
    x = 679,362.50

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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.