Home / 1,039,740.34-1,559,759.28-320,142.92

Finding the Fourth Proportional to 1,039,740.34, 1,559,759.28 and 320,142.92

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Solution

The fourth proportional to 1,039,740.34, 1,559,759.28 and 320,142.92 is: 480,260.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,039,740.34 : 1,559,759.28 = 320,142.92 : x
  2. Step 2: Convert to fraction form
    1,039,740.34/1,559,759.28 = 320,142.92/x
  3. Step 3: Cross multiply
    1,039,740.34x = 1,559,759.28 × 320,142.92
  4. Step 4: Simplify right side
    1,039,740.34x = 499,345,890,396.30
  5. Step 5: Solve for x
    x = 499,345,890,396.30/1,039,740.34
  6. Step 6: Final answer
    x = 480,260.19

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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.