Home / 1,330,307.20-1,995,460.80-798,428.80

Finding the Fourth Proportional to 1,330,307.20, 1,995,460.80 and 798,428.80

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Solution

The fourth proportional to 1,330,307.20, 1,995,460.80 and 798,428.80 is: 1,197,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,307.20 : 1,995,460.80 = 798,428.80 : x
  2. Step 2: Convert to fraction form
    1,330,307.20/1,995,460.80 = 798,428.80/x
  3. Step 3: Cross multiply
    1,330,307.20x = 1,995,460.80 × 798,428.80
  4. Step 4: Simplify right side
    1,330,307.20x = 1,593,233,371,991.04
  5. Step 5: Solve for x
    x = 1,593,233,371,991.04/1,330,307.20
  6. Step 6: Final answer
    x = 1,197,643.20

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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.