Home / 412,934.76-618,983.82-279,828.48

Finding the Fourth Proportional to 412,934.76, 618,983.82 and 279,828.48

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Solution

The fourth proportional to 412,934.76, 618,983.82 and 279,828.48 is: 419,459.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,934.76 : 618,983.82 = 279,828.48 : x
  2. Step 2: Convert to fraction form
    412,934.76/618,983.82 = 279,828.48/x
  3. Step 3: Cross multiply
    412,934.76x = 618,983.82 × 279,828.48
  4. Step 4: Simplify right side
    412,934.76x = 173,209,301,495.19
  5. Step 5: Solve for x
    x = 173,209,301,495.19/412,934.76
  6. Step 6: Final answer
    x = 419,459.24

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1.5x scale

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.