Home / 772,362.42-1,065,923.01-428,306.09

Finding the Fourth Proportional to 772,362.42, 1,065,923.01 and 428,306.09

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Solution

The fourth proportional to 772,362.42, 1,065,923.01 and 428,306.09 is: 591,097.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,362.42 : 1,065,923.01 = 428,306.09 : x
  2. Step 2: Convert to fraction form
    772,362.42/1,065,923.01 = 428,306.09/x
  3. Step 3: Cross multiply
    772,362.42x = 1,065,923.01 × 428,306.09
  4. Step 4: Simplify right side
    772,362.42x = 456,541,311,324.52
  5. Step 5: Solve for x
    x = 456,541,311,324.52/772,362.42
  6. Step 6: Final answer
    x = 591,097.26

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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.