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Finding the Fourth Proportional to 543,690.21, 750,271.73 and 301,988.28

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Solution

The fourth proportional to 543,690.21, 750,271.73 and 301,988.28 is: 416,732.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,690.21 : 750,271.73 = 301,988.28 : x
  2. Step 2: Convert to fraction form
    543,690.21/750,271.73 = 301,988.28/x
  3. Step 3: Cross multiply
    543,690.21x = 750,271.73 × 301,988.28
  4. Step 4: Simplify right side
    543,690.21x = 226,573,272,277.59
  5. Step 5: Solve for x
    x = 226,573,272,277.59/543,690.21
  6. Step 6: Final answer
    x = 416,732.30

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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.