Home / 1,223,999.90-1,835,999.85-426,182.30

Finding the Fourth Proportional to 1,223,999.90, 1,835,999.85 and 426,182.30

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Solution

The fourth proportional to 1,223,999.90, 1,835,999.85 and 426,182.30 is: 639,273.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,223,999.90 : 1,835,999.85 = 426,182.30 : x
  2. Step 2: Convert to fraction form
    1,223,999.90/1,835,999.85 = 426,182.30/x
  3. Step 3: Cross multiply
    1,223,999.90x = 1,835,999.85 × 426,182.30
  4. Step 4: Simplify right side
    1,223,999.90x = 782,470,638,872.66
  5. Step 5: Solve for x
    x = 782,470,638,872.66/1,223,999.90
  6. Step 6: Final answer
    x = 639,273.45

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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.