Home / 1,359,352.80-2,039,320.80-412,819.20

Finding the Fourth Proportional to 1,359,352.80, 2,039,320.80 and 412,819.20

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Solution

The fourth proportional to 1,359,352.80, 2,039,320.80 and 412,819.20 is: 619,317.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,359,352.80 : 2,039,320.80 = 412,819.20 : x
  2. Step 2: Convert to fraction form
    1,359,352.80/2,039,320.80 = 412,819.20/x
  3. Step 3: Cross multiply
    1,359,352.80x = 2,039,320.80 × 412,819.20
  4. Step 4: Simplify right side
    1,359,352.80x = 841,870,781,199.36
  5. Step 5: Solve for x
    x = 841,870,781,199.36/1,359,352.80
  6. Step 6: Final answer
    x = 619,317.36

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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.