Home / 1,859,400.90-2,789,101.35-661,362.30

Finding the Fourth Proportional to 1,859,400.90, 2,789,101.35 and 661,362.30

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Solution

The fourth proportional to 1,859,400.90, 2,789,101.35 and 661,362.30 is: 992,043.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,859,400.90 : 2,789,101.35 = 661,362.30 : x
  2. Step 2: Convert to fraction form
    1,859,400.90/2,789,101.35 = 661,362.30/x
  3. Step 3: Cross multiply
    1,859,400.90x = 2,789,101.35 × 661,362.30
  4. Step 4: Simplify right side
    1,859,400.90x = 1,844,606,483,769.11
  5. Step 5: Solve for x
    x = 1,844,606,483,769.11/1,859,400.90
  6. Step 6: Final answer
    x = 992,043.45

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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.