Home / 986,962.60-1,480,443.90-355,940.20

Finding the Fourth Proportional to 986,962.60, 1,480,443.90 and 355,940.20

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Solution

The fourth proportional to 986,962.60, 1,480,443.90 and 355,940.20 is: 533,910.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,962.60 : 1,480,443.90 = 355,940.20 : x
  2. Step 2: Convert to fraction form
    986,962.60/1,480,443.90 = 355,940.20/x
  3. Step 3: Cross multiply
    986,962.60x = 1,480,443.90 × 355,940.20
  4. Step 4: Simplify right side
    986,962.60x = 526,949,497,854.78
  5. Step 5: Solve for x
    x = 526,949,497,854.78/986,962.60
  6. Step 6: Final answer
    x = 533,910.30

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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.