Home / 448,626.16-618,754.06-287,496.20

Finding the Fourth Proportional to 448,626.16, 618,754.06 and 287,496.20

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Solution

The fourth proportional to 448,626.16, 618,754.06 and 287,496.20 is: 396,520.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,626.16 : 618,754.06 = 287,496.20 : x
  2. Step 2: Convert to fraction form
    448,626.16/618,754.06 = 287,496.20/x
  3. Step 3: Cross multiply
    448,626.16x = 618,754.06 × 287,496.20
  4. Step 4: Simplify right side
    448,626.16x = 177,889,440,984.57
  5. Step 5: Solve for x
    x = 177,889,440,984.57/448,626.16
  6. Step 6: Final answer
    x = 396,520.44

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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.