Home / 1,392,223.80-2,088,335.70-445,625.40

Finding the Fourth Proportional to 1,392,223.80, 2,088,335.70 and 445,625.40

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Solution

The fourth proportional to 1,392,223.80, 2,088,335.70 and 445,625.40 is: 668,438.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,392,223.80 : 2,088,335.70 = 445,625.40 : x
  2. Step 2: Convert to fraction form
    1,392,223.80/2,088,335.70 = 445,625.40/x
  3. Step 3: Cross multiply
    1,392,223.80x = 2,088,335.70 × 445,625.40
  4. Step 4: Simplify right side
    1,392,223.80x = 930,615,431,646.78
  5. Step 5: Solve for x
    x = 930,615,431,646.78/1,392,223.80
  6. Step 6: Final answer
    x = 668,438.10

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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.