Home / 678,686.68-1,017,861.88-229,397.64

Finding the Fourth Proportional to 678,686.68, 1,017,861.88 and 229,397.64

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Solution

The fourth proportional to 678,686.68, 1,017,861.88 and 229,397.64 is: 344,039.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,686.68 : 1,017,861.88 = 229,397.64 : x
  2. Step 2: Convert to fraction form
    678,686.68/1,017,861.88 = 229,397.64/x
  3. Step 3: Cross multiply
    678,686.68x = 1,017,861.88 × 229,397.64
  4. Step 4: Simplify right side
    678,686.68x = 233,495,113,117.96
  5. Step 5: Solve for x
    x = 233,495,113,117.96/678,686.68
  6. Step 6: Final answer
    x = 344,039.63

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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.