Home / 1,339,675.20-2,011,845.60-709,819.20

Finding the Fourth Proportional to 1,339,675.20, 2,011,845.60 and 709,819.20

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Solution

The fourth proportional to 1,339,675.20, 2,011,845.60 and 709,819.20 is: 1,065,964.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,339,675.20 : 2,011,845.60 = 709,819.20 : x
  2. Step 2: Convert to fraction form
    1,339,675.20/2,011,845.60 = 709,819.20/x
  3. Step 3: Cross multiply
    1,339,675.20x = 2,011,845.60 × 709,819.20
  4. Step 4: Simplify right side
    1,339,675.20x = 1,428,046,634,315.52
  5. Step 5: Solve for x
    x = 1,428,046,634,315.52/1,339,675.20
  6. Step 6: Final answer
    x = 1,065,964.82

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1.5x scale

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.