Home / 810,785.64-1,216,376.68-571,366.56

Finding the Fourth Proportional to 810,785.64, 1,216,376.68 and 571,366.56

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Solution

The fourth proportional to 810,785.64, 1,216,376.68 and 571,366.56 is: 857,189.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,785.64 : 1,216,376.68 = 571,366.56 : x
  2. Step 2: Convert to fraction form
    810,785.64/1,216,376.68 = 571,366.56/x
  3. Step 3: Cross multiply
    810,785.64x = 1,216,376.68 × 571,366.56
  4. Step 4: Simplify right side
    810,785.64x = 694,996,959,315.82
  5. Step 5: Solve for x
    x = 694,996,959,315.82/810,785.64
  6. Step 6: Final answer
    x = 857,189.53

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.