Home / 1,215,816.90-1,823,726.79-317,257.98

Finding the Fourth Proportional to 1,215,816.90, 1,823,726.79 and 317,257.98

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Solution

The fourth proportional to 1,215,816.90, 1,823,726.79 and 317,257.98 is: 475,887.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,816.90 : 1,823,726.79 = 317,257.98 : x
  2. Step 2: Convert to fraction form
    1,215,816.90/1,823,726.79 = 317,257.98/x
  3. Step 3: Cross multiply
    1,215,816.90x = 1,823,726.79 × 317,257.98
  4. Step 4: Simplify right side
    1,215,816.90x = 578,591,877,467.28
  5. Step 5: Solve for x
    x = 578,591,877,467.28/1,215,816.90
  6. Step 6: Final answer
    x = 475,887.35

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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.