Home / 1,400,650.20-2,101,631.40-690,290.76

Finding the Fourth Proportional to 1,400,650.20, 2,101,631.40 and 690,290.76

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Solution

The fourth proportional to 1,400,650.20, 2,101,631.40 and 690,290.76 is: 1,035,759.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,400,650.20 : 2,101,631.40 = 690,290.76 : x
  2. Step 2: Convert to fraction form
    1,400,650.20/2,101,631.40 = 690,290.76/x
  3. Step 3: Cross multiply
    1,400,650.20x = 2,101,631.40 × 690,290.76
  4. Step 4: Simplify right side
    1,400,650.20x = 1,450,736,736,345.86
  5. Step 5: Solve for x
    x = 1,450,736,736,345.86/1,400,650.20
  6. Step 6: Final answer
    x = 1,035,759.49

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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.