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Finding the Fourth Proportional to 661,506.10, 992,777.55 and 306,564.10

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Solution

The fourth proportional to 661,506.10, 992,777.55 and 306,564.10 is: 460,086.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,506.10 : 992,777.55 = 306,564.10 : x
  2. Step 2: Convert to fraction form
    661,506.10/992,777.55 = 306,564.10/x
  3. Step 3: Cross multiply
    661,506.10x = 992,777.55 × 306,564.10
  4. Step 4: Simplify right side
    661,506.10x = 304,349,956,115.96
  5. Step 5: Solve for x
    x = 304,349,956,115.96/661,506.10
  6. Step 6: Final answer
    x = 460,086.39

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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.