Home / 775,753.12-1,070,844.24-489,216.16

Finding the Fourth Proportional to 775,753.12, 1,070,844.24 and 489,216.16

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Solution

The fourth proportional to 775,753.12, 1,070,844.24 and 489,216.16 is: 675,310.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,753.12 : 1,070,844.24 = 489,216.16 : x
  2. Step 2: Convert to fraction form
    775,753.12/1,070,844.24 = 489,216.16/x
  3. Step 3: Cross multiply
    775,753.12x = 1,070,844.24 × 489,216.16
  4. Step 4: Simplify right side
    775,753.12x = 523,874,307,050.92
  5. Step 5: Solve for x
    x = 523,874,307,050.92/775,753.12
  6. Step 6: Final answer
    x = 675,310.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.