Home / 1,243,815.33-1,861,985.35-1,113,888.70

Finding the Fourth Proportional to 1,243,815.33, 1,861,985.35 and 1,113,888.70

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Solution

The fourth proportional to 1,243,815.33, 1,861,985.35 and 1,113,888.70 is: 1,667,485.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,815.33 : 1,861,985.35 = 1,113,888.70 : x
  2. Step 2: Convert to fraction form
    1,243,815.33/1,861,985.35 = 1,113,888.70/x
  3. Step 3: Cross multiply
    1,243,815.33x = 1,861,985.35 × 1,113,888.70
  4. Step 4: Simplify right side
    1,243,815.33x = 2,074,044,440,930.55
  5. Step 5: Solve for x
    x = 2,074,044,440,930.55/1,243,815.33
  6. Step 6: Final answer
    x = 1,667,485.83

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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.