Home / 1,119,939.40-1,679,472.30-488,422.60

Finding the Fourth Proportional to 1,119,939.40, 1,679,472.30 and 488,422.60

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Solution

The fourth proportional to 1,119,939.40, 1,679,472.30 and 488,422.60 is: 732,443.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,119,939.40 : 1,679,472.30 = 488,422.60 : x
  2. Step 2: Convert to fraction form
    1,119,939.40/1,679,472.30 = 488,422.60/x
  3. Step 3: Cross multiply
    1,119,939.40x = 1,679,472.30 × 488,422.60
  4. Step 4: Simplify right side
    1,119,939.40x = 820,292,227,393.98
  5. Step 5: Solve for x
    x = 820,292,227,393.98/1,119,939.40
  6. Step 6: Final answer
    x = 732,443.40

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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.