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Finding the Fourth Proportional to 570,850.12, 787,772.82 and 316,217.80

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Solution

The fourth proportional to 570,850.12, 787,772.82 and 316,217.80 is: 436,380.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,850.12 : 787,772.82 = 316,217.80 : x
  2. Step 2: Convert to fraction form
    570,850.12/787,772.82 = 316,217.80/x
  3. Step 3: Cross multiply
    570,850.12x = 787,772.82 × 316,217.80
  4. Step 4: Simplify right side
    570,850.12x = 249,107,788,040.20
  5. Step 5: Solve for x
    x = 249,107,788,040.20/570,850.12
  6. Step 6: Final answer
    x = 436,380.37

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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.