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Finding the Fourth Proportional to 1,440,572.04, 1,987,936.02 and 795,978.90

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Solution

The fourth proportional to 1,440,572.04, 1,987,936.02 and 795,978.90 is: 1,098,421.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,572.04 : 1,987,936.02 = 795,978.90 : x
  2. Step 2: Convert to fraction form
    1,440,572.04/1,987,936.02 = 795,978.90/x
  3. Step 3: Cross multiply
    1,440,572.04x = 1,987,936.02 × 795,978.90
  4. Step 4: Simplify right side
    1,440,572.04x = 1,582,355,126,469.98
  5. Step 5: Solve for x
    x = 1,582,355,126,469.98/1,440,572.04
  6. Step 6: Final answer
    x = 1,098,421.38

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1.5x scale

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.