Home / 1,190,967.72-1,643,515.52-647,111.84

Finding the Fourth Proportional to 1,190,967.72, 1,643,515.52 and 647,111.84

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Solution

The fourth proportional to 1,190,967.72, 1,643,515.52 and 647,111.84 is: 893,003.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,967.72 : 1,643,515.52 = 647,111.84 : x
  2. Step 2: Convert to fraction form
    1,190,967.72/1,643,515.52 = 647,111.84/x
  3. Step 3: Cross multiply
    1,190,967.72x = 1,643,515.52 × 647,111.84
  4. Step 4: Simplify right side
    1,190,967.72x = 1,063,538,352,215.76
  5. Step 5: Solve for x
    x = 1,063,538,352,215.76/1,190,967.72
  6. Step 6: Final answer
    x = 893,003.51

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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.