Home / 448,414.26-618,461.75-287,284.30

Finding the Fourth Proportional to 448,414.26, 618,461.75 and 287,284.30

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Solution

The fourth proportional to 448,414.26, 618,461.75 and 287,284.30 is: 396,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,414.26 : 618,461.75 = 287,284.30 : x
  2. Step 2: Convert to fraction form
    448,414.26/618,461.75 = 287,284.30/x
  3. Step 3: Cross multiply
    448,414.26x = 618,461.75 × 287,284.30
  4. Step 4: Simplify right side
    448,414.26x = 177,674,350,925.53
  5. Step 5: Solve for x
    x = 177,674,350,925.53/448,414.26
  6. Step 6: Final answer
    x = 396,228.15

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1.5x scale

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.