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Finding the Fourth Proportional to 661,703.60, 992,267.40 and 306,599.60

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Solution

The fourth proportional to 661,703.60, 992,267.40 and 306,599.60 is: 459,765.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,703.60 : 992,267.40 = 306,599.60 : x
  2. Step 2: Convert to fraction form
    661,703.60/992,267.40 = 306,599.60/x
  3. Step 3: Cross multiply
    661,703.60x = 992,267.40 × 306,599.60
  4. Step 4: Simplify right side
    661,703.60x = 304,228,787,933.04
  5. Step 5: Solve for x
    x = 304,228,787,933.04/661,703.60
  6. Step 6: Final answer
    x = 459,765.96

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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.