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Finding the Fourth Proportional to 613,633, 920,461.02 and 170,412.52

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Solution

The fourth proportional to 613,633, 920,461.02 and 170,412.52 is: 255,621.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,633 : 920,461.02 = 170,412.52 : x
  2. Step 2: Convert to fraction form
    613,633/920,461.02 = 170,412.52/x
  3. Step 3: Cross multiply
    613,633x = 920,461.02 × 170,412.52
  4. Step 4: Simplify right side
    613,633x = 156,858,081,979.97
  5. Step 5: Solve for x
    x = 156,858,081,979.97/613,633
  6. Step 6: Final answer
    x = 255,621.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.