Home / 1,191,121.84-1,643,746.89-647,256.34

Finding the Fourth Proportional to 1,191,121.84, 1,643,746.89 and 647,256.34

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Solution

The fourth proportional to 1,191,121.84, 1,643,746.89 and 647,256.34 is: 893,213.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,121.84 : 1,643,746.89 = 647,256.34 : x
  2. Step 2: Convert to fraction form
    1,191,121.84/1,643,746.89 = 647,256.34/x
  3. Step 3: Cross multiply
    1,191,121.84x = 1,643,746.89 × 647,256.34
  4. Step 4: Simplify right side
    1,191,121.84x = 1,063,925,595,907.78
  5. Step 5: Solve for x
    x = 1,063,925,595,907.78/1,191,121.84
  6. Step 6: Final answer
    x = 893,213.07

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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.