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Finding the Fourth Proportional to 671,997.55, 927,356.20 and 370,191.55

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Solution

The fourth proportional to 671,997.55, 927,356.20 and 370,191.55 is: 510,864.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,997.55 : 927,356.20 = 370,191.55 : x
  2. Step 2: Convert to fraction form
    671,997.55/927,356.20 = 370,191.55/x
  3. Step 3: Cross multiply
    671,997.55x = 927,356.20 × 370,191.55
  4. Step 4: Simplify right side
    671,997.55x = 343,299,429,080.11
  5. Step 5: Solve for x
    x = 343,299,429,080.11/671,997.55
  6. Step 6: Final answer
    x = 510,864.11

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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.