Home / 448,412.12-618,458.82-287,282.16

Finding the Fourth Proportional to 448,412.12, 618,458.82 and 287,282.16

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Solution

The fourth proportional to 448,412.12, 618,458.82 and 287,282.16 is: 396,225.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,412.12 : 618,458.82 = 287,282.16 : x
  2. Step 2: Convert to fraction form
    448,412.12/618,458.82 = 287,282.16/x
  3. Step 3: Cross multiply
    448,412.12x = 618,458.82 × 287,282.16
  4. Step 4: Simplify right side
    448,412.12x = 177,672,185,680.65
  5. Step 5: Solve for x
    x = 177,672,185,680.65/448,412.12
  6. Step 6: Final answer
    x = 396,225.21

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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.