Home / 1,339,981.28-2,009,760.20-1,113,729.45

Finding the Fourth Proportional to 1,339,981.28, 2,009,760.20 and 1,113,729.45

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Solution

The fourth proportional to 1,339,981.28, 2,009,760.20 and 1,113,729.45 is: 1,670,418.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,981.28 : 2,009,760.20 = 1,113,729.45 : x
  2. Step 2: Convert to fraction form
    1,339,981.28/2,009,760.20 = 1,113,729.45/x
  3. Step 3: Cross multiply
    1,339,981.28x = 2,009,760.20 × 1,113,729.45
  4. Step 4: Simplify right side
    1,339,981.28x = 2,238,329,119,513.86
  5. Step 5: Solve for x
    x = 2,238,329,119,513.86/1,339,981.28
  6. Step 6: Final answer
    x = 1,670,418.20

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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.