Home / 1,012,689.95-1,519,782.55-480,212.75

Finding the Fourth Proportional to 1,012,689.95, 1,519,782.55 and 480,212.75

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Solution

The fourth proportional to 1,012,689.95, 1,519,782.55 and 480,212.75 is: 720,673.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,689.95 : 1,519,782.55 = 480,212.75 : x
  2. Step 2: Convert to fraction form
    1,012,689.95/1,519,782.55 = 480,212.75/x
  3. Step 3: Cross multiply
    1,012,689.95x = 1,519,782.55 × 480,212.75
  4. Step 4: Simplify right side
    1,012,689.95x = 729,818,960,336.44
  5. Step 5: Solve for x
    x = 729,818,960,336.44/1,012,689.95
  6. Step 6: Final answer
    x = 720,673.65

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1.5x scale

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.