Home / 708,478.02-1,062,950.34-287,640.90

Finding the Fourth Proportional to 708,478.02, 1,062,950.34 and 287,640.90

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Solution

The fourth proportional to 708,478.02, 1,062,950.34 and 287,640.90 is: 431,556.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    708,478.02 : 1,062,950.34 = 287,640.90 : x
  2. Step 2: Convert to fraction form
    708,478.02/1,062,950.34 = 287,640.90/x
  3. Step 3: Cross multiply
    708,478.02x = 1,062,950.34 × 287,640.90
  4. Step 4: Simplify right side
    708,478.02x = 305,747,992,452.91
  5. Step 5: Solve for x
    x = 305,747,992,452.91/708,478.02
  6. Step 6: Final answer
    x = 431,556.07

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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.