Home / 768,250.76-1,060,059.26-428,718.20

Finding the Fourth Proportional to 768,250.76, 1,060,059.26 and 428,718.20

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Solution

The fourth proportional to 768,250.76, 1,060,059.26 and 428,718.20 is: 591,560.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,250.76 : 1,060,059.26 = 428,718.20 : x
  2. Step 2: Convert to fraction form
    768,250.76/1,060,059.26 = 428,718.20/x
  3. Step 3: Cross multiply
    768,250.76x = 1,060,059.26 × 428,718.20
  4. Step 4: Simplify right side
    768,250.76x = 454,466,697,840.53
  5. Step 5: Solve for x
    x = 454,466,697,840.53/768,250.76
  6. Step 6: Final answer
    x = 591,560.36

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Double scale
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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.