Home / 1,123,661.60-1,550,273.12-639,883.70

Finding the Fourth Proportional to 1,123,661.60, 1,550,273.12 and 639,883.70

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Solution

The fourth proportional to 1,123,661.60, 1,550,273.12 and 639,883.70 is: 882,823.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,123,661.60 : 1,550,273.12 = 639,883.70 : x
  2. Step 2: Convert to fraction form
    1,123,661.60/1,550,273.12 = 639,883.70/x
  3. Step 3: Cross multiply
    1,123,661.60x = 1,550,273.12 × 639,883.70
  4. Step 4: Simplify right side
    1,123,661.60x = 991,994,500,036.14
  5. Step 5: Solve for x
    x = 991,994,500,036.14/1,123,661.60
  6. Step 6: Final answer
    x = 882,823.17

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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.