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Finding the Fourth Proportional to 570,775.12, 787,660.02 and 316,120.84

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Solution

The fourth proportional to 570,775.12, 787,660.02 and 316,120.84 is: 436,241.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,775.12 : 787,660.02 = 316,120.84 : x
  2. Step 2: Convert to fraction form
    570,775.12/787,660.02 = 316,120.84/x
  3. Step 3: Cross multiply
    570,775.12x = 787,660.02 × 316,120.84
  4. Step 4: Simplify right side
    570,775.12x = 248,995,747,156.82
  5. Step 5: Solve for x
    x = 248,995,747,156.82/570,775.12
  6. Step 6: Final answer
    x = 436,241.42

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Similar ratio
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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.