Home / 448,631.09-618,760.86-287,501.13

Finding the Fourth Proportional to 448,631.09, 618,760.86 and 287,501.13

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Solution

The fourth proportional to 448,631.09, 618,760.86 and 287,501.13 is: 396,527.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,631.09 : 618,760.86 = 287,501.13 : x
  2. Step 2: Convert to fraction form
    448,631.09/618,760.86 = 287,501.13/x
  3. Step 3: Cross multiply
    448,631.09x = 618,760.86 × 287,501.13
  4. Step 4: Simplify right side
    448,631.09x = 177,894,445,371.64
  5. Step 5: Solve for x
    x = 177,894,445,371.64/448,631.09
  6. Step 6: Final answer
    x = 396,527.24

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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.