Home / 1,121,914.08-1,681,870.77-411,777.36

Finding the Fourth Proportional to 1,121,914.08, 1,681,870.77 and 411,777.36

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Solution

The fourth proportional to 1,121,914.08, 1,681,870.77 and 411,777.36 is: 617,298.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,914.08 : 1,681,870.77 = 411,777.36 : x
  2. Step 2: Convert to fraction form
    1,121,914.08/1,681,870.77 = 411,777.36/x
  3. Step 3: Cross multiply
    1,121,914.08x = 1,681,870.77 × 411,777.36
  4. Step 4: Simplify right side
    1,121,914.08x = 692,556,305,531.77
  5. Step 5: Solve for x
    x = 692,556,305,531.77/1,121,914.08
  6. Step 6: Final answer
    x = 617,298.88

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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.