Home / 1,479,799.40-2,219,699.10-1,397,130.80

Finding the Fourth Proportional to 1,479,799.40, 2,219,699.10 and 1,397,130.80

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Solution

The fourth proportional to 1,479,799.40, 2,219,699.10 and 1,397,130.80 is: 2,095,696.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,479,799.40 : 2,219,699.10 = 1,397,130.80 : x
  2. Step 2: Convert to fraction form
    1,479,799.40/2,219,699.10 = 1,397,130.80/x
  3. Step 3: Cross multiply
    1,479,799.40x = 2,219,699.10 × 1,397,130.80
  4. Step 4: Simplify right side
    1,479,799.40x = 3,101,209,979,342.28
  5. Step 5: Solve for x
    x = 3,101,209,979,342.28/1,479,799.40
  6. Step 6: Final answer
    x = 2,095,696.20

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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.