Home / 2,105,728.40-3,156,000.60-1,431,808.40

Finding the Fourth Proportional to 2,105,728.40, 3,156,000.60 and 1,431,808.40

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Solution

The fourth proportional to 2,105,728.40, 3,156,000.60 and 1,431,808.40 is: 2,145,950.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,105,728.40 : 3,156,000.60 = 1,431,808.40 : x
  2. Step 2: Convert to fraction form
    2,105,728.40/3,156,000.60 = 1,431,808.40/x
  3. Step 3: Cross multiply
    2,105,728.40x = 3,156,000.60 × 1,431,808.40
  4. Step 4: Simplify right side
    2,105,728.40x = 4,518,788,169,485.04
  5. Step 5: Solve for x
    x = 4,518,788,169,485.04/2,105,728.40
  6. Step 6: Final answer
    x = 2,145,950.15

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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.