Home / 1,119,937.40-1,679,469.30-488,420.60

Finding the Fourth Proportional to 1,119,937.40, 1,679,469.30 and 488,420.60

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Solution

The fourth proportional to 1,119,937.40, 1,679,469.30 and 488,420.60 is: 732,440.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,937.40 : 1,679,469.30 = 488,420.60 : x
  2. Step 2: Convert to fraction form
    1,119,937.40/1,679,469.30 = 488,420.60/x
  3. Step 3: Cross multiply
    1,119,937.40x = 1,679,469.30 × 488,420.60
  4. Step 4: Simplify right side
    1,119,937.40x = 820,287,403,187.58
  5. Step 5: Solve for x
    x = 820,287,403,187.58/1,119,937.40
  6. Step 6: Final answer
    x = 732,440.41

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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.