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Finding the Fourth Proportional to 478,769.02, 659,806.23 and 357,696.70

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Solution

The fourth proportional to 478,769.02, 659,806.23 and 357,696.70 is: 492,952.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,769.02 : 659,806.23 = 357,696.70 : x
  2. Step 2: Convert to fraction form
    478,769.02/659,806.23 = 357,696.70/x
  3. Step 3: Cross multiply
    478,769.02x = 659,806.23 × 357,696.70
  4. Step 4: Simplify right side
    478,769.02x = 236,010,511,110.44
  5. Step 5: Solve for x
    x = 236,010,511,110.44/478,769.02
  6. Step 6: Final answer
    x = 492,952.76

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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.