Home / 900,842.16-1,243,143-492,942.36

Finding the Fourth Proportional to 900,842.16, 1,243,143 and 492,942.36

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Solution

The fourth proportional to 900,842.16, 1,243,143 and 492,942.36 is: 680,249.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,842.16 : 1,243,143 = 492,942.36 : x
  2. Step 2: Convert to fraction form
    900,842.16/1,243,143 = 492,942.36/x
  3. Step 3: Cross multiply
    900,842.16x = 1,243,143 × 492,942.36
  4. Step 4: Simplify right side
    900,842.16x = 612,797,844,237.48
  5. Step 5: Solve for x
    x = 612,797,844,237.48/900,842.16
  6. Step 6: Final answer
    x = 680,249.96

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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.