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Finding the Fourth Proportional to 570,915.34, 787,947.09 and 329,150.69

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Solution

The fourth proportional to 570,915.34, 787,947.09 and 329,150.69 is: 454,276.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,915.34 : 787,947.09 = 329,150.69 : x
  2. Step 2: Convert to fraction form
    570,915.34/787,947.09 = 329,150.69/x
  3. Step 3: Cross multiply
    570,915.34x = 787,947.09 × 329,150.69
  4. Step 4: Simplify right side
    570,915.34x = 259,353,327,989.22
  5. Step 5: Solve for x
    x = 259,353,327,989.22/570,915.34
  6. Step 6: Final answer
    x = 454,276.34

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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.