Home / 1,638,991.68-2,458,852.86-501,913.68

Finding the Fourth Proportional to 1,638,991.68, 2,458,852.86 and 501,913.68

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Solution

The fourth proportional to 1,638,991.68, 2,458,852.86 and 501,913.68 is: 752,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,991.68 : 2,458,852.86 = 501,913.68 : x
  2. Step 2: Convert to fraction form
    1,638,991.68/2,458,852.86 = 501,913.68/x
  3. Step 3: Cross multiply
    1,638,991.68x = 2,458,852.86 × 501,913.68
  4. Step 4: Simplify right side
    1,638,991.68x = 1,234,131,887,541.12
  5. Step 5: Solve for x
    x = 1,234,131,887,541.12/1,638,991.68
  6. Step 6: Final answer
    x = 752,982.40

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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.