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Finding the Fourth Proportional to 478,851.42, 660,812.58 and 263,990.82

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Solution

The fourth proportional to 478,851.42, 660,812.58 and 263,990.82 is: 364,306.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,851.42 : 660,812.58 = 263,990.82 : x
  2. Step 2: Convert to fraction form
    478,851.42/660,812.58 = 263,990.82/x
  3. Step 3: Cross multiply
    478,851.42x = 660,812.58 × 263,990.82
  4. Step 4: Simplify right side
    478,851.42x = 174,448,454,860.52
  5. Step 5: Solve for x
    x = 174,448,454,860.52/478,851.42
  6. Step 6: Final answer
    x = 364,306.02

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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.