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Finding the Fourth Proportional to 570,680.76, 787,475.88 and 315,968.16

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Solution

The fourth proportional to 570,680.76, 787,475.88 and 315,968.16 is: 436,000.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,680.76 : 787,475.88 = 315,968.16 : x
  2. Step 2: Convert to fraction form
    570,680.76/787,475.88 = 315,968.16/x
  3. Step 3: Cross multiply
    570,680.76x = 787,475.88 × 315,968.16
  4. Step 4: Simplify right side
    570,680.76x = 248,817,304,847.98
  5. Step 5: Solve for x
    x = 248,817,304,847.98/570,680.76
  6. Step 6: Final answer
    x = 436,000.86

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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.