Home / 772,332.27-1,065,881.46-428,276.07

Finding the Fourth Proportional to 772,332.27, 1,065,881.46 and 428,276.07

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Solution

The fourth proportional to 772,332.27, 1,065,881.46 and 428,276.07 is: 591,055.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,332.27 : 1,065,881.46 = 428,276.07 : x
  2. Step 2: Convert to fraction form
    772,332.27/1,065,881.46 = 428,276.07/x
  3. Step 3: Cross multiply
    772,332.27x = 1,065,881.46 × 428,276.07
  4. Step 4: Simplify right side
    772,332.27x = 456,491,522,774.66
  5. Step 5: Solve for x
    x = 456,491,522,774.66/772,332.27
  6. Step 6: Final answer
    x = 591,055.87

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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.