Home / 1,092,139.80-1,638,209.70-333,979.80

Finding the Fourth Proportional to 1,092,139.80, 1,638,209.70 and 333,979.80

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Solution

The fourth proportional to 1,092,139.80, 1,638,209.70 and 333,979.80 is: 500,969.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,139.80 : 1,638,209.70 = 333,979.80 : x
  2. Step 2: Convert to fraction form
    1,092,139.80/1,638,209.70 = 333,979.80/x
  3. Step 3: Cross multiply
    1,092,139.80x = 1,638,209.70 × 333,979.80
  4. Step 4: Simplify right side
    1,092,139.80x = 547,128,947,964.06
  5. Step 5: Solve for x
    x = 547,128,947,964.06/1,092,139.80
  6. Step 6: Final answer
    x = 500,969.70

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Double scale
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Similar ratio
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1.5x scale

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.