Home / 987,193.80-1,480,790.70-277,342.20

Finding the Fourth Proportional to 987,193.80, 1,480,790.70 and 277,342.20

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Solution

The fourth proportional to 987,193.80, 1,480,790.70 and 277,342.20 is: 416,013.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    987,193.80 : 1,480,790.70 = 277,342.20 : x
  2. Step 2: Convert to fraction form
    987,193.80/1,480,790.70 = 277,342.20/x
  3. Step 3: Cross multiply
    987,193.80x = 1,480,790.70 × 277,342.20
  4. Step 4: Simplify right side
    987,193.80x = 410,685,750,477.54
  5. Step 5: Solve for x
    x = 410,685,750,477.54/987,193.80
  6. Step 6: Final answer
    x = 416,013.30

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Double scale
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Similar ratio
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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.