Home / 980,878.80-1,471,318.20-507,709.20

Finding the Fourth Proportional to 980,878.80, 1,471,318.20 and 507,709.20

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Solution

The fourth proportional to 980,878.80, 1,471,318.20 and 507,709.20 is: 761,563.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    980,878.80 : 1,471,318.20 = 507,709.20 : x
  2. Step 2: Convert to fraction form
    980,878.80/1,471,318.20 = 507,709.20/x
  3. Step 3: Cross multiply
    980,878.80x = 1,471,318.20 × 507,709.20
  4. Step 4: Simplify right side
    980,878.80x = 747,001,786,267.44
  5. Step 5: Solve for x
    x = 747,001,786,267.44/980,878.80
  6. Step 6: Final answer
    x = 761,563.80

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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.