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Finding the Fourth Proportional to 1,353,600.32, 1,867,968.47 and 749,988.32

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Solution

The fourth proportional to 1,353,600.32, 1,867,968.47 and 749,988.32 is: 1,034,983.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,353,600.32 : 1,867,968.47 = 749,988.32 : x
  2. Step 2: Convert to fraction form
    1,353,600.32/1,867,968.47 = 749,988.32/x
  3. Step 3: Cross multiply
    1,353,600.32x = 1,867,968.47 × 749,988.32
  4. Step 4: Simplify right side
    1,353,600.32x = 1,400,954,527,163.40
  5. Step 5: Solve for x
    x = 1,400,954,527,163.40/1,353,600.32
  6. Step 6: Final answer
    x = 1,034,983.90

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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.