Home / 515,300.04-772,161.78-275,448.06

Finding the Fourth Proportional to 515,300.04, 772,161.78 and 275,448.06

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Solution

The fourth proportional to 515,300.04, 772,161.78 and 275,448.06 is: 412,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,300.04 : 772,161.78 = 275,448.06 : x
  2. Step 2: Convert to fraction form
    515,300.04/772,161.78 = 275,448.06/x
  3. Step 3: Cross multiply
    515,300.04x = 772,161.78 × 275,448.06
  4. Step 4: Simplify right side
    515,300.04x = 212,690,464,307.15
  5. Step 5: Solve for x
    x = 212,690,464,307.15/515,300.04
  6. Step 6: Final answer
    x = 412,750.72

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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.