Home / 1,121,161.95-1,681,964.27-411,196.14

Finding the Fourth Proportional to 1,121,161.95, 1,681,964.27 and 411,196.14

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Solution

The fourth proportional to 1,121,161.95, 1,681,964.27 and 411,196.14 is: 616,875.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,161.95 : 1,681,964.27 = 411,196.14 : x
  2. Step 2: Convert to fraction form
    1,121,161.95/1,681,964.27 = 411,196.14/x
  3. Step 3: Cross multiply
    1,121,161.95x = 1,681,964.27 × 411,196.14
  4. Step 4: Simplify right side
    1,121,161.95x = 691,617,213,385.94
  5. Step 5: Solve for x
    x = 691,617,213,385.94/1,121,161.95
  6. Step 6: Final answer
    x = 616,875.39

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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.