Home / 1,191,195.39-1,643,844.23-647,320.89

Finding the Fourth Proportional to 1,191,195.39, 1,643,844.23 and 647,320.89

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Solution

The fourth proportional to 1,191,195.39, 1,643,844.23 and 647,320.89 is: 893,299.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,195.39 : 1,643,844.23 = 647,320.89 : x
  2. Step 2: Convert to fraction form
    1,191,195.39/1,643,844.23 = 647,320.89/x
  3. Step 3: Cross multiply
    1,191,195.39x = 1,643,844.23 × 647,320.89
  4. Step 4: Simplify right side
    1,191,195.39x = 1,064,094,709,984.96
  5. Step 5: Solve for x
    x = 1,064,094,709,984.96/1,191,195.39
  6. Step 6: Final answer
    x = 893,299.89

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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.