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Finding the Fourth Proportional to 672,902.16, 928,540.44 and 371,076.72

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Solution

The fourth proportional to 672,902.16, 928,540.44 and 371,076.72 is: 512,050.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,902.16 : 928,540.44 = 371,076.72 : x
  2. Step 2: Convert to fraction form
    672,902.16/928,540.44 = 371,076.72/x
  3. Step 3: Cross multiply
    672,902.16x = 928,540.44 × 371,076.72
  4. Step 4: Simplify right side
    672,902.16x = 344,559,740,862.56
  5. Step 5: Solve for x
    x = 344,559,740,862.56/672,902.16
  6. Step 6: Final answer
    x = 512,050.28

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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.