Home / 684,775.20-1,025,218.80-647,536.80

Finding the Fourth Proportional to 684,775.20, 1,025,218.80 and 647,536.80

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Solution

The fourth proportional to 684,775.20, 1,025,218.80 and 647,536.80 is: 969,466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,775.20 : 1,025,218.80 = 647,536.80 : x
  2. Step 2: Convert to fraction form
    684,775.20/1,025,218.80 = 647,536.80/x
  3. Step 3: Cross multiply
    684,775.20x = 1,025,218.80 × 647,536.80
  4. Step 4: Simplify right side
    684,775.20x = 663,866,901,051.84
  5. Step 5: Solve for x
    x = 663,866,901,051.84/684,775.20
  6. Step 6: Final answer
    x = 969,466.92

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1.5x scale

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.