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Finding the Fourth Proportional to 366,642, 547,454.79 and 328,444.68

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Solution

The fourth proportional to 366,642, 547,454.79 and 328,444.68 is: 490,420.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,642 : 547,454.79 = 328,444.68 : x
  2. Step 2: Convert to fraction form
    366,642/547,454.79 = 328,444.68/x
  3. Step 3: Cross multiply
    366,642x = 547,454.79 × 328,444.68
  4. Step 4: Simplify right side
    366,642x = 179,808,613,316.02
  5. Step 5: Solve for x
    x = 179,808,613,316.02/366,642
  6. Step 6: Final answer
    x = 490,420.12

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.