Home / 605,541.90-910,281.15-518,936.70

Finding the Fourth Proportional to 605,541.90, 910,281.15 and 518,936.70

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Solution

The fourth proportional to 605,541.90, 910,281.15 and 518,936.70 is: 780,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,541.90 : 910,281.15 = 518,936.70 : x
  2. Step 2: Convert to fraction form
    605,541.90/910,281.15 = 518,936.70/x
  3. Step 3: Cross multiply
    605,541.90x = 910,281.15 × 518,936.70
  4. Step 4: Simplify right side
    605,541.90x = 472,378,296,053.21
  5. Step 5: Solve for x
    x = 472,378,296,053.21/605,541.90
  6. Step 6: Final answer
    x = 780,091.84

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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.