Home / 1,289,633.60-1,777,818.70-901,243.19

Finding the Fourth Proportional to 1,289,633.60, 1,777,818.70 and 901,243.19

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Solution

The fourth proportional to 1,289,633.60, 1,777,818.70 and 901,243.19 is: 1,242,404.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,633.60 : 1,777,818.70 = 901,243.19 : x
  2. Step 2: Convert to fraction form
    1,289,633.60/1,777,818.70 = 901,243.19/x
  3. Step 3: Cross multiply
    1,289,633.60x = 1,777,818.70 × 901,243.19
  4. Step 4: Simplify right side
    1,289,633.60x = 1,602,246,998,621.09
  5. Step 5: Solve for x
    x = 1,602,246,998,621.09/1,289,633.60
  6. Step 6: Final answer
    x = 1,242,404.82

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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.