Home / 1,191,122.45-1,643,747.72-647,256.95

Finding the Fourth Proportional to 1,191,122.45, 1,643,747.72 and 647,256.95

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Solution

The fourth proportional to 1,191,122.45, 1,643,747.72 and 647,256.95 is: 893,213.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,122.45 : 1,643,747.72 = 647,256.95 : x
  2. Step 2: Convert to fraction form
    1,191,122.45/1,643,747.72 = 647,256.95/x
  3. Step 3: Cross multiply
    1,191,122.45x = 1,643,747.72 × 647,256.95
  4. Step 4: Simplify right side
    1,191,122.45x = 1,063,927,129,216.06
  5. Step 5: Solve for x
    x = 1,063,927,129,216.06/1,191,122.45
  6. Step 6: Final answer
    x = 893,213.90

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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.