Home / 708,630.72-1,063,386.90-287,906.60

Finding the Fourth Proportional to 708,630.72, 1,063,386.90 and 287,906.60

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Solution

The fourth proportional to 708,630.72, 1,063,386.90 and 287,906.60 is: 432,039.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,630.72 : 1,063,386.90 = 287,906.60 : x
  2. Step 2: Convert to fraction form
    708,630.72/1,063,386.90 = 287,906.60/x
  3. Step 3: Cross multiply
    708,630.72x = 1,063,386.90 × 287,906.60
  4. Step 4: Simplify right side
    708,630.72x = 306,156,106,863.54
  5. Step 5: Solve for x
    x = 306,156,106,863.54/708,630.72
  6. Step 6: Final answer
    x = 432,039.00

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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.