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Finding the Fourth Proportional to 540,051.40, 744,382.02 and 382,940.20

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Solution

The fourth proportional to 540,051.40, 744,382.02 and 382,940.20 is: 527,827.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,051.40 : 744,382.02 = 382,940.20 : x
  2. Step 2: Convert to fraction form
    540,051.40/744,382.02 = 382,940.20/x
  3. Step 3: Cross multiply
    540,051.40x = 744,382.02 × 382,940.20
  4. Step 4: Simplify right side
    540,051.40x = 285,053,799,615.20
  5. Step 5: Solve for x
    x = 285,053,799,615.20/540,051.40
  6. Step 6: Final answer
    x = 527,827.17

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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.