Home / 1,069,538.70-1,603,227.90-670,459.20

Finding the Fourth Proportional to 1,069,538.70, 1,603,227.90 and 670,459.20

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Solution

The fourth proportional to 1,069,538.70, 1,603,227.90 and 670,459.20 is: 1,005,011.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,069,538.70 : 1,603,227.90 = 670,459.20 : x
  2. Step 2: Convert to fraction form
    1,069,538.70/1,603,227.90 = 670,459.20/x
  3. Step 3: Cross multiply
    1,069,538.70x = 1,603,227.90 × 670,459.20
  4. Step 4: Simplify right side
    1,069,538.70x = 1,074,898,895,251.68
  5. Step 5: Solve for x
    x = 1,074,898,895,251.68/1,069,538.70
  6. Step 6: Final answer
    x = 1,005,011.69

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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.