Home / 691,889.64-1,038,134.18-371,667.88

Finding the Fourth Proportional to 691,889.64, 1,038,134.18 and 371,667.88

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Solution

The fourth proportional to 691,889.64, 1,038,134.18 and 371,667.88 is: 557,662.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,889.64 : 1,038,134.18 = 371,667.88 : x
  2. Step 2: Convert to fraction form
    691,889.64/1,038,134.18 = 371,667.88/x
  3. Step 3: Cross multiply
    691,889.64x = 1,038,134.18 × 371,667.88
  4. Step 4: Simplify right side
    691,889.64x = 385,841,129,836.14
  5. Step 5: Solve for x
    x = 385,841,129,836.14/691,889.64
  6. Step 6: Final answer
    x = 557,662.82

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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.