Home / 1,138,196.91-1,570,692.77-621,939.47

Finding the Fourth Proportional to 1,138,196.91, 1,570,692.77 and 621,939.47

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Solution

The fourth proportional to 1,138,196.91, 1,570,692.77 and 621,939.47 is: 858,266.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,196.91 : 1,570,692.77 = 621,939.47 : x
  2. Step 2: Convert to fraction form
    1,138,196.91/1,570,692.77 = 621,939.47/x
  3. Step 3: Cross multiply
    1,138,196.91x = 1,570,692.77 × 621,939.47
  4. Step 4: Simplify right side
    1,138,196.91x = 976,875,820,275.74
  5. Step 5: Solve for x
    x = 976,875,820,275.74/1,138,196.91
  6. Step 6: Final answer
    x = 858,266.09

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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.