Home / 2,991,911.31-4,487,866.65-748,049.31

Finding the Fourth Proportional to 2,991,911.31, 4,487,866.65 and 748,049.31

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Solution

The fourth proportional to 2,991,911.31, 4,487,866.65 and 748,049.31 is: 1,122,073.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,991,911.31 : 4,487,866.65 = 748,049.31 : x
  2. Step 2: Convert to fraction form
    2,991,911.31/4,487,866.65 = 748,049.31/x
  3. Step 3: Cross multiply
    2,991,911.31x = 4,487,866.65 × 748,049.31
  4. Step 4: Simplify right side
    2,991,911.31x = 3,357,145,550,904.51
  5. Step 5: Solve for x
    x = 3,357,145,550,904.51/2,991,911.31
  6. Step 6: Final answer
    x = 1,122,073.89

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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.