Home / 900,863.36-1,243,180.68-492,960.80

Finding the Fourth Proportional to 900,863.36, 1,243,180.68 and 492,960.80

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Solution

The fourth proportional to 900,863.36, 1,243,180.68 and 492,960.80 is: 680,280.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,863.36 : 1,243,180.68 = 492,960.80 : x
  2. Step 2: Convert to fraction form
    900,863.36/1,243,180.68 = 492,960.80/x
  3. Step 3: Cross multiply
    900,863.36x = 1,243,180.68 × 492,960.80
  4. Step 4: Simplify right side
    900,863.36x = 612,839,342,557.34
  5. Step 5: Solve for x
    x = 612,839,342,557.34/900,863.36
  6. Step 6: Final answer
    x = 680,280.02

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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.