Home / 708,629.69-1,063,385.35-287,905.56

Finding the Fourth Proportional to 708,629.69, 1,063,385.35 and 287,905.56

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Solution

The fourth proportional to 708,629.69, 1,063,385.35 and 287,905.56 is: 432,037.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,629.69 : 1,063,385.35 = 287,905.56 : x
  2. Step 2: Convert to fraction form
    708,629.69/1,063,385.35 = 287,905.56/x
  3. Step 3: Cross multiply
    708,629.69x = 1,063,385.35 × 287,905.56
  4. Step 4: Simplify right side
    708,629.69x = 306,154,560,167.02
  5. Step 5: Solve for x
    x = 306,154,560,167.02/708,629.69
  6. Step 6: Final answer
    x = 432,037.44

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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.