Home / 610,719.89-916,142.67-211,360.05

Finding the Fourth Proportional to 610,719.89, 916,142.67 and 211,360.05

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Solution

The fourth proportional to 610,719.89, 916,142.67 and 211,360.05 is: 317,061.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,719.89 : 916,142.67 = 211,360.05 : x
  2. Step 2: Convert to fraction form
    610,719.89/916,142.67 = 211,360.05/x
  3. Step 3: Cross multiply
    610,719.89x = 916,142.67 × 211,360.05
  4. Step 4: Simplify right side
    610,719.89x = 193,635,960,538.33
  5. Step 5: Solve for x
    x = 193,635,960,538.33/610,719.89
  6. Step 6: Final answer
    x = 317,061.82

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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.