Home / 540,787.78-811,119.70-141,467.10

Finding the Fourth Proportional to 540,787.78, 811,119.70 and 141,467.10

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Solution

The fourth proportional to 540,787.78, 811,119.70 and 141,467.10 is: 212,184.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,787.78 : 811,119.70 = 141,467.10 : x
  2. Step 2: Convert to fraction form
    540,787.78/811,119.70 = 141,467.10/x
  3. Step 3: Cross multiply
    540,787.78x = 811,119.70 × 141,467.10
  4. Step 4: Simplify right side
    540,787.78x = 114,746,751,711.87
  5. Step 5: Solve for x
    x = 114,746,751,711.87/540,787.78
  6. Step 6: Final answer
    x = 212,184.44

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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.