Home / 840,731.78-1,160,198.97-458,751.98

Finding the Fourth Proportional to 840,731.78, 1,160,198.97 and 458,751.98

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Solution

The fourth proportional to 840,731.78, 1,160,198.97 and 458,751.98 is: 633,071.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,731.78 : 1,160,198.97 = 458,751.98 : x
  2. Step 2: Convert to fraction form
    840,731.78/1,160,198.97 = 458,751.98/x
  3. Step 3: Cross multiply
    840,731.78x = 1,160,198.97 × 458,751.98
  4. Step 4: Simplify right side
    840,731.78x = 532,243,574,681.46
  5. Step 5: Solve for x
    x = 532,243,574,681.46/840,731.78
  6. Step 6: Final answer
    x = 633,071.79

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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.