Home / 1,420,562.61-1,960,344.18-775,985.67

Finding the Fourth Proportional to 1,420,562.61, 1,960,344.18 and 775,985.67

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Solution

The fourth proportional to 1,420,562.61, 1,960,344.18 and 775,985.67 is: 1,070,842.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,420,562.61 : 1,960,344.18 = 775,985.67 : x
  2. Step 2: Convert to fraction form
    1,420,562.61/1,960,344.18 = 775,985.67/x
  3. Step 3: Cross multiply
    1,420,562.61x = 1,960,344.18 × 775,985.67
  4. Step 4: Simplify right side
    1,420,562.61x = 1,521,198,991,947.90
  5. Step 5: Solve for x
    x = 1,521,198,991,947.90/1,420,562.61
  6. Step 6: Final answer
    x = 1,070,842.62

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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.