Home / 900,881.87-1,243,217.10-492,983.80

Finding the Fourth Proportional to 900,881.87, 1,243,217.10 and 492,983.80

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Solution

The fourth proportional to 900,881.87, 1,243,217.10 and 492,983.80 is: 680,317.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,881.87 : 1,243,217.10 = 492,983.80 : x
  2. Step 2: Convert to fraction form
    900,881.87/1,243,217.10 = 492,983.80/x
  3. Step 3: Cross multiply
    900,881.87x = 1,243,217.10 × 492,983.80
  4. Step 4: Simplify right side
    900,881.87x = 612,885,890,182.98
  5. Step 5: Solve for x
    x = 612,885,890,182.98/900,881.87
  6. Step 6: Final answer
    x = 680,317.71

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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.