Home / 1,226,416.75-1,692,455.13-682,680.98

Finding the Fourth Proportional to 1,226,416.75, 1,692,455.13 and 682,680.98

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Solution

The fourth proportional to 1,226,416.75, 1,692,455.13 and 682,680.98 is: 942,099.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,416.75 : 1,692,455.13 = 682,680.98 : x
  2. Step 2: Convert to fraction form
    1,226,416.75/1,692,455.13 = 682,680.98/x
  3. Step 3: Cross multiply
    1,226,416.75x = 1,692,455.13 × 682,680.98
  4. Step 4: Simplify right side
    1,226,416.75x = 1,155,406,930,985.57
  5. Step 5: Solve for x
    x = 1,155,406,930,985.57/1,226,416.75
  6. Step 6: Final answer
    x = 942,099.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.