Home / 772,913.80-1,066,621.50-471,107.80

Finding the Fourth Proportional to 772,913.80, 1,066,621.50 and 471,107.80

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Solution

The fourth proportional to 772,913.80, 1,066,621.50 and 471,107.80 is: 650,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,913.80 : 1,066,621.50 = 471,107.80 : x
  2. Step 2: Convert to fraction form
    772,913.80/1,066,621.50 = 471,107.80/x
  3. Step 3: Cross multiply
    772,913.80x = 1,066,621.50 × 471,107.80
  4. Step 4: Simplify right side
    772,913.80x = 502,493,708,297.70
  5. Step 5: Solve for x
    x = 502,493,708,297.70/772,913.80
  6. Step 6: Final answer
    x = 650,129.04

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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.