Home / 1,344,803.60-2,015,434.20-988,144.40

Finding the Fourth Proportional to 1,344,803.60, 2,015,434.20 and 988,144.40

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Solution

The fourth proportional to 1,344,803.60, 2,015,434.20 and 988,144.40 is: 1,480,915.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,803.60 : 2,015,434.20 = 988,144.40 : x
  2. Step 2: Convert to fraction form
    1,344,803.60/2,015,434.20 = 988,144.40/x
  3. Step 3: Cross multiply
    1,344,803.60x = 2,015,434.20 × 988,144.40
  4. Step 4: Simplify right side
    1,344,803.60x = 1,991,540,018,298.48
  5. Step 5: Solve for x
    x = 1,991,540,018,298.48/1,344,803.60
  6. Step 6: Final answer
    x = 1,480,915.15

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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.