Home / 347,790.10-521,685.15-318,630.10

Finding the Fourth Proportional to 347,790.10, 521,685.15 and 318,630.10

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Solution

The fourth proportional to 347,790.10, 521,685.15 and 318,630.10 is: 477,945.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,790.10 : 521,685.15 = 318,630.10 : x
  2. Step 2: Convert to fraction form
    347,790.10/521,685.15 = 318,630.10/x
  3. Step 3: Cross multiply
    347,790.10x = 521,685.15 × 318,630.10
  4. Step 4: Simplify right side
    347,790.10x = 166,224,591,513.02
  5. Step 5: Solve for x
    x = 166,224,591,513.02/347,790.10
  6. Step 6: Final answer
    x = 477,945.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.