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Finding the Fourth Proportional to 520,606.80, 779,743.80 and 310,654.80

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Solution

The fourth proportional to 520,606.80, 779,743.80 and 310,654.80 is: 465,286.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,606.80 : 779,743.80 = 310,654.80 : x
  2. Step 2: Convert to fraction form
    520,606.80/779,743.80 = 310,654.80/x
  3. Step 3: Cross multiply
    520,606.80x = 779,743.80 × 310,654.80
  4. Step 4: Simplify right side
    520,606.80x = 242,231,154,240.24
  5. Step 5: Solve for x
    x = 242,231,154,240.24/520,606.80
  6. Step 6: Final answer
    x = 465,286.19

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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.