Home / 661,562.20-992,036.10-287,392.60

Finding the Fourth Proportional to 661,562.20, 992,036.10 and 287,392.60

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Solution

The fourth proportional to 661,562.20, 992,036.10 and 287,392.60 is: 430,955.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,562.20 : 992,036.10 = 287,392.60 : x
  2. Step 2: Convert to fraction form
    661,562.20/992,036.10 = 287,392.60/x
  3. Step 3: Cross multiply
    661,562.20x = 992,036.10 × 287,392.60
  4. Step 4: Simplify right side
    661,562.20x = 285,103,834,072.86
  5. Step 5: Solve for x
    x = 285,103,834,072.86/661,562.20
  6. Step 6: Final answer
    x = 430,955.45

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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.