Home / 1,187,043.90-1,778,698.74-917,829.66

Finding the Fourth Proportional to 1,187,043.90, 1,778,698.74 and 917,829.66

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Solution

The fourth proportional to 1,187,043.90, 1,778,698.74 and 917,829.66 is: 1,375,300.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,043.90 : 1,778,698.74 = 917,829.66 : x
  2. Step 2: Convert to fraction form
    1,187,043.90/1,778,698.74 = 917,829.66/x
  3. Step 3: Cross multiply
    1,187,043.90x = 1,778,698.74 × 917,829.66
  4. Step 4: Simplify right side
    1,187,043.90x = 1,632,542,459,776.63
  5. Step 5: Solve for x
    x = 1,632,542,459,776.63/1,187,043.90
  6. Step 6: Final answer
    x = 1,375,300.83

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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.