Home / 768,921.92-1,061,142.28-424,775.60

Finding the Fourth Proportional to 768,921.92, 1,061,142.28 and 424,775.60

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Solution

The fourth proportional to 768,921.92, 1,061,142.28 and 424,775.60 is: 586,206.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,921.92 : 1,061,142.28 = 424,775.60 : x
  2. Step 2: Convert to fraction form
    768,921.92/1,061,142.28 = 424,775.60/x
  3. Step 3: Cross multiply
    768,921.92x = 1,061,142.28 × 424,775.60
  4. Step 4: Simplify right side
    768,921.92x = 450,747,348,672.37
  5. Step 5: Solve for x
    x = 450,747,348,672.37/768,921.92
  6. Step 6: Final answer
    x = 586,206.92

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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.