Home / 1,012,276.80-1,518,998.40-381,643.20

Finding the Fourth Proportional to 1,012,276.80, 1,518,998.40 and 381,643.20

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Solution

The fourth proportional to 1,012,276.80, 1,518,998.40 and 381,643.20 is: 572,684.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,276.80 : 1,518,998.40 = 381,643.20 : x
  2. Step 2: Convert to fraction form
    1,012,276.80/1,518,998.40 = 381,643.20/x
  3. Step 3: Cross multiply
    1,012,276.80x = 1,518,998.40 × 381,643.20
  4. Step 4: Simplify right side
    1,012,276.80x = 579,715,410,170.88
  5. Step 5: Solve for x
    x = 579,715,410,170.88/1,012,276.80
  6. Step 6: Final answer
    x = 572,684.67

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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.