Home / 1,638,752.80-2,458,129.20-516,935.20

Finding the Fourth Proportional to 1,638,752.80, 2,458,129.20 and 516,935.20

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Solution

The fourth proportional to 1,638,752.80, 2,458,129.20 and 516,935.20 is: 775,402.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,638,752.80 : 2,458,129.20 = 516,935.20 : x
  2. Step 2: Convert to fraction form
    1,638,752.80/2,458,129.20 = 516,935.20/x
  3. Step 3: Cross multiply
    1,638,752.80x = 2,458,129.20 × 516,935.20
  4. Step 4: Simplify right side
    1,638,752.80x = 1,270,693,509,627.84
  5. Step 5: Solve for x
    x = 1,270,693,509,627.84/1,638,752.80
  6. Step 6: Final answer
    x = 775,402.80

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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.