Home / 448,631.10-618,760.82-287,501.13

Finding the Fourth Proportional to 448,631.10, 618,760.82 and 287,501.13

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Solution

The fourth proportional to 448,631.10, 618,760.82 and 287,501.13 is: 396,527.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,631.10 : 618,760.82 = 287,501.13 : x
  2. Step 2: Convert to fraction form
    448,631.10/618,760.82 = 287,501.13/x
  3. Step 3: Cross multiply
    448,631.10x = 618,760.82 × 287,501.13
  4. Step 4: Simplify right side
    448,631.10x = 177,894,435,668.48
  5. Step 5: Solve for x
    x = 177,894,435,668.48/448,631.10
  6. Step 6: Final answer
    x = 396,527.20

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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.