Home / 784,645.64-1,082,921.28-458,065.76

Finding the Fourth Proportional to 784,645.64, 1,082,921.28 and 458,065.76

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Solution

The fourth proportional to 784,645.64, 1,082,921.28 and 458,065.76 is: 632,195.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,645.64 : 1,082,921.28 = 458,065.76 : x
  2. Step 2: Convert to fraction form
    784,645.64/1,082,921.28 = 458,065.76/x
  3. Step 3: Cross multiply
    784,645.64x = 1,082,921.28 × 458,065.76
  4. Step 4: Simplify right side
    784,645.64x = 496,049,159,143.37
  5. Step 5: Solve for x
    x = 496,049,159,143.37/784,645.64
  6. Step 6: Final answer
    x = 632,195.14

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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.