Home / 1,480,329.60-2,221,012.80-639,484.80

Finding the Fourth Proportional to 1,480,329.60, 2,221,012.80 and 639,484.80

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Solution

The fourth proportional to 1,480,329.60, 2,221,012.80 and 639,484.80 is: 959,451.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,480,329.60 : 2,221,012.80 = 639,484.80 : x
  2. Step 2: Convert to fraction form
    1,480,329.60/2,221,012.80 = 639,484.80/x
  3. Step 3: Cross multiply
    1,480,329.60x = 2,221,012.80 × 639,484.80
  4. Step 4: Simplify right side
    1,480,329.60x = 1,420,303,926,205.44
  5. Step 5: Solve for x
    x = 1,420,303,926,205.44/1,480,329.60
  6. Step 6: Final answer
    x = 959,451.14

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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.