Home / 841,278.02-1,259,905.28-485,212.55

Finding the Fourth Proportional to 841,278.02, 1,259,905.28 and 485,212.55

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Solution

The fourth proportional to 841,278.02, 1,259,905.28 and 485,212.55 is: 726,658.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,278.02 : 1,259,905.28 = 485,212.55 : x
  2. Step 2: Convert to fraction form
    841,278.02/1,259,905.28 = 485,212.55/x
  3. Step 3: Cross multiply
    841,278.02x = 1,259,905.28 × 485,212.55
  4. Step 4: Simplify right side
    841,278.02x = 611,321,844,941.68
  5. Step 5: Solve for x
    x = 611,321,844,941.68/841,278.02
  6. Step 6: Final answer
    x = 726,658.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.