Home / 708,479.02-1,062,951.84-287,641.90

Finding the Fourth Proportional to 708,479.02, 1,062,951.84 and 287,641.90

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Solution

The fourth proportional to 708,479.02, 1,062,951.84 and 287,641.90 is: 431,557.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,479.02 : 1,062,951.84 = 287,641.90 : x
  2. Step 2: Convert to fraction form
    708,479.02/1,062,951.84 = 287,641.90/x
  3. Step 3: Cross multiply
    708,479.02x = 1,062,951.84 × 287,641.90
  4. Step 4: Simplify right side
    708,479.02x = 305,749,486,866.10
  5. Step 5: Solve for x
    x = 305,749,486,866.10/708,479.02
  6. Step 6: Final answer
    x = 431,557.57

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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.