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Finding the Fourth Proportional to 1,440,126, 1,987,373.88 and 804,222

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Solution

The fourth proportional to 1,440,126, 1,987,373.88 and 804,222 is: 1,109,826.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,126 : 1,987,373.88 = 804,222 : x
  2. Step 2: Convert to fraction form
    1,440,126/1,987,373.88 = 804,222/x
  3. Step 3: Cross multiply
    1,440,126x = 1,987,373.88 × 804,222
  4. Step 4: Simplify right side
    1,440,126x = 1,598,289,796,521.36
  5. Step 5: Solve for x
    x = 1,598,289,796,521.36/1,440,126
  6. Step 6: Final answer
    x = 1,109,826.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.