Home / 881,063.60-1,215,828.52-499,082.64

Finding the Fourth Proportional to 881,063.60, 1,215,828.52 and 499,082.64

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Solution

The fourth proportional to 881,063.60, 1,215,828.52 and 499,082.64 is: 688,711.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    881,063.60 : 1,215,828.52 = 499,082.64 : x
  2. Step 2: Convert to fraction form
    881,063.60/1,215,828.52 = 499,082.64/x
  3. Step 3: Cross multiply
    881,063.60x = 1,215,828.52 × 499,082.64
  4. Step 4: Simplify right side
    881,063.60x = 606,798,907,548.89
  5. Step 5: Solve for x
    x = 606,798,907,548.89/881,063.60
  6. Step 6: Final answer
    x = 688,711.81

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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.