Home / 1,392,029.80-2,088,044.70-445,431.40

Finding the Fourth Proportional to 1,392,029.80, 2,088,044.70 and 445,431.40

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Solution

The fourth proportional to 1,392,029.80, 2,088,044.70 and 445,431.40 is: 668,147.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,029.80 : 2,088,044.70 = 445,431.40 : x
  2. Step 2: Convert to fraction form
    1,392,029.80/2,088,044.70 = 445,431.40/x
  3. Step 3: Cross multiply
    1,392,029.80x = 2,088,044.70 × 445,431.40
  4. Step 4: Simplify right side
    1,392,029.80x = 930,080,673,983.58
  5. Step 5: Solve for x
    x = 930,080,673,983.58/1,392,029.80
  6. Step 6: Final answer
    x = 668,147.10

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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.