Home / 979,531.40-1,469,297.10-348,465.80

Finding the Fourth Proportional to 979,531.40, 1,469,297.10 and 348,465.80

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Solution

The fourth proportional to 979,531.40, 1,469,297.10 and 348,465.80 is: 522,698.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,531.40 : 1,469,297.10 = 348,465.80 : x
  2. Step 2: Convert to fraction form
    979,531.40/1,469,297.10 = 348,465.80/x
  3. Step 3: Cross multiply
    979,531.40x = 1,469,297.10 × 348,465.80
  4. Step 4: Simplify right side
    979,531.40x = 511,999,789,389.18
  5. Step 5: Solve for x
    x = 511,999,789,389.18/979,531.40
  6. Step 6: Final answer
    x = 522,698.70

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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.