Home / 515,312.04-772,179.78-275,460.06

Finding the Fourth Proportional to 515,312.04, 772,179.78 and 275,460.06

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Solution

The fourth proportional to 515,312.04, 772,179.78 and 275,460.06 is: 412,768.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,312.04 : 772,179.78 = 275,460.06 : x
  2. Step 2: Convert to fraction form
    515,312.04/772,179.78 = 275,460.06/x
  3. Step 3: Cross multiply
    515,312.04x = 772,179.78 × 275,460.06
  4. Step 4: Simplify right side
    515,312.04x = 212,704,688,529.59
  5. Step 5: Solve for x
    x = 212,704,688,529.59/515,312.04
  6. Step 6: Final answer
    x = 412,768.71

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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.