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Finding the Fourth Proportional to 570,770.88, 787,654.16 and 316,116.60

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Solution

The fourth proportional to 570,770.88, 787,654.16 and 316,116.60 is: 436,235.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,770.88 : 787,654.16 = 316,116.60 : x
  2. Step 2: Convert to fraction form
    570,770.88/787,654.16 = 316,116.60/x
  3. Step 3: Cross multiply
    570,770.88x = 787,654.16 × 316,116.60
  4. Step 4: Simplify right side
    570,770.88x = 248,990,549,516.20
  5. Step 5: Solve for x
    x = 248,990,549,516.20/570,770.88
  6. Step 6: Final answer
    x = 436,235.56

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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.