Home / 1,209,979.40-1,816,091.30-611,360.94

Finding the Fourth Proportional to 1,209,979.40, 1,816,091.30 and 611,360.94

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Solution

The fourth proportional to 1,209,979.40, 1,816,091.30 and 611,360.94 is: 917,608.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,209,979.40 : 1,816,091.30 = 611,360.94 : x
  2. Step 2: Convert to fraction form
    1,209,979.40/1,816,091.30 = 611,360.94/x
  3. Step 3: Cross multiply
    1,209,979.40x = 1,816,091.30 × 611,360.94
  4. Step 4: Simplify right side
    1,209,979.40x = 1,110,287,281,237.02
  5. Step 5: Solve for x
    x = 1,110,287,281,237.02/1,209,979.40
  6. Step 6: Final answer
    x = 917,608.42

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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.