Home / 775,621.32-1,070,226.99-431,412.36

Finding the Fourth Proportional to 775,621.32, 1,070,226.99 and 431,412.36

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Solution

The fourth proportional to 775,621.32, 1,070,226.99 and 431,412.36 is: 595,276.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,621.32 : 1,070,226.99 = 431,412.36 : x
  2. Step 2: Convert to fraction form
    775,621.32/1,070,226.99 = 431,412.36/x
  3. Step 3: Cross multiply
    775,621.32x = 1,070,226.99 × 431,412.36
  4. Step 4: Simplify right side
    775,621.32x = 461,709,151,491.60
  5. Step 5: Solve for x
    x = 461,709,151,491.60/775,621.32
  6. Step 6: Final answer
    x = 595,276.51

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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.