Home / 448,638.60-671,377.08-280,238.24

Finding the Fourth Proportional to 448,638.60, 671,377.08 and 280,238.24

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Solution

The fourth proportional to 448,638.60, 671,377.08 and 280,238.24 is: 419,369.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,638.60 : 671,377.08 = 280,238.24 : x
  2. Step 2: Convert to fraction form
    448,638.60/671,377.08 = 280,238.24/x
  3. Step 3: Cross multiply
    448,638.60x = 671,377.08 × 280,238.24
  4. Step 4: Simplify right side
    448,638.60x = 188,145,527,918.65
  5. Step 5: Solve for x
    x = 188,145,527,918.65/448,638.60
  6. Step 6: Final answer
    x = 419,369.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.