Home / 775,064.80-1,069,460.13-430,891.12

Finding the Fourth Proportional to 775,064.80, 1,069,460.13 and 430,891.12

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Solution

The fourth proportional to 775,064.80, 1,069,460.13 and 430,891.12 is: 594,557.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,064.80 : 1,069,460.13 = 430,891.12 : x
  2. Step 2: Convert to fraction form
    775,064.80/1,069,460.13 = 430,891.12/x
  3. Step 3: Cross multiply
    775,064.80x = 1,069,460.13 × 430,891.12
  4. Step 4: Simplify right side
    775,064.80x = 460,820,873,211.05
  5. Step 5: Solve for x
    x = 460,820,873,211.05/775,064.80
  6. Step 6: Final answer
    x = 594,557.87

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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.