Home / 1,412,643.60-2,118,965.40-465,891.30

Finding the Fourth Proportional to 1,412,643.60, 2,118,965.40 and 465,891.30

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Solution

The fourth proportional to 1,412,643.60, 2,118,965.40 and 465,891.30 is: 698,836.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,412,643.60 : 2,118,965.40 = 465,891.30 : x
  2. Step 2: Convert to fraction form
    1,412,643.60/2,118,965.40 = 465,891.30/x
  3. Step 3: Cross multiply
    1,412,643.60x = 2,118,965.40 × 465,891.30
  4. Step 4: Simplify right side
    1,412,643.60x = 987,207,544,861.02
  5. Step 5: Solve for x
    x = 987,207,544,861.02/1,412,643.60
  6. Step 6: Final answer
    x = 698,836.95

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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.