Home / 631,390.20-871,337.22-344,915.04

Finding the Fourth Proportional to 631,390.20, 871,337.22 and 344,915.04

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Solution

The fourth proportional to 631,390.20, 871,337.22 and 344,915.04 is: 475,992.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    631,390.20 : 871,337.22 = 344,915.04 : x
  2. Step 2: Convert to fraction form
    631,390.20/871,337.22 = 344,915.04/x
  3. Step 3: Cross multiply
    631,390.20x = 871,337.22 × 344,915.04
  4. Step 4: Simplify right side
    631,390.20x = 300,537,312,089.79
  5. Step 5: Solve for x
    x = 300,537,312,089.79/631,390.20
  6. Step 6: Final answer
    x = 475,992.99

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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.