Home / 768,007.58-1,059,851.13-428,475.92

Finding the Fourth Proportional to 768,007.58, 1,059,851.13 and 428,475.92

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Solution

The fourth proportional to 768,007.58, 1,059,851.13 and 428,475.92 is: 591,297.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    768,007.58 : 1,059,851.13 = 428,475.92 : x
  2. Step 2: Convert to fraction form
    768,007.58/1,059,851.13 = 428,475.92/x
  3. Step 3: Cross multiply
    768,007.58x = 1,059,851.13 × 428,475.92
  4. Step 4: Simplify right side
    768,007.58x = 454,120,687,989.79
  5. Step 5: Solve for x
    x = 454,120,687,989.79/768,007.58
  6. Step 6: Final answer
    x = 591,297.14

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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.