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Finding the Fourth Proportional to 666,182, 919,331.16 and 364,376

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Solution

The fourth proportional to 666,182, 919,331.16 and 364,376 is: 502,838.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,182 : 919,331.16 = 364,376 : x
  2. Step 2: Convert to fraction form
    666,182/919,331.16 = 364,376/x
  3. Step 3: Cross multiply
    666,182x = 919,331.16 × 364,376
  4. Step 4: Simplify right side
    666,182x = 334,982,210,756.16
  5. Step 5: Solve for x
    x = 334,982,210,756.16/666,182
  6. Step 6: Final answer
    x = 502,838.88

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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.