Home / 768,034.56-1,059,938.64-428,510.04

Finding the Fourth Proportional to 768,034.56, 1,059,938.64 and 428,510.04

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Solution

The fourth proportional to 768,034.56, 1,059,938.64 and 428,510.04 is: 591,372.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,034.56 : 1,059,938.64 = 428,510.04 : x
  2. Step 2: Convert to fraction form
    768,034.56/1,059,938.64 = 428,510.04/x
  3. Step 3: Cross multiply
    768,034.56x = 1,059,938.64 × 428,510.04
  4. Step 4: Simplify right side
    768,034.56x = 454,194,349,023.95
  5. Step 5: Solve for x
    x = 454,194,349,023.95/768,034.56
  6. Step 6: Final answer
    x = 591,372.28

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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.