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Finding the Fourth Proportional to 672,207.12, 927,602.28 and 370,401.12

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Solution

The fourth proportional to 672,207.12, 927,602.28 and 370,401.12 is: 511,129.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,207.12 : 927,602.28 = 370,401.12 : x
  2. Step 2: Convert to fraction form
    672,207.12/927,602.28 = 370,401.12/x
  3. Step 3: Cross multiply
    672,207.12x = 927,602.28 × 370,401.12
  4. Step 4: Simplify right side
    672,207.12x = 343,584,923,426.55
  5. Step 5: Solve for x
    x = 343,584,923,426.55/672,207.12
  6. Step 6: Final answer
    x = 511,129.55

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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.