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Finding the Fourth Proportional to 543,239.60, 749,635.28 and 301,510.56

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Solution

The fourth proportional to 543,239.60, 749,635.28 and 301,510.56 is: 416,064.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,239.60 : 749,635.28 = 301,510.56 : x
  2. Step 2: Convert to fraction form
    543,239.60/749,635.28 = 301,510.56/x
  3. Step 3: Cross multiply
    543,239.60x = 749,635.28 × 301,510.56
  4. Step 4: Simplify right side
    543,239.60x = 226,022,953,068.56
  5. Step 5: Solve for x
    x = 226,022,953,068.56/543,239.60
  6. Step 6: Final answer
    x = 416,064.94

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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.