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Finding the Fourth Proportional to 467,705.02, 645,002.37 and 306,501.52

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Solution

The fourth proportional to 467,705.02, 645,002.37 and 306,501.52 is: 422,689.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    467,705.02 : 645,002.37 = 306,501.52 : x
  2. Step 2: Convert to fraction form
    467,705.02/645,002.37 = 306,501.52/x
  3. Step 3: Cross multiply
    467,705.02x = 645,002.37 × 306,501.52
  4. Step 4: Simplify right side
    467,705.02x = 197,694,206,808.60
  5. Step 5: Solve for x
    x = 197,694,206,808.60/467,705.02
  6. Step 6: Final answer
    x = 422,689.94

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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.