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Finding the Fourth Proportional to 519,304.88, 716,642.89 and 280,840.88

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Solution

The fourth proportional to 519,304.88, 716,642.89 and 280,840.88 is: 387,561.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,304.88 : 716,642.89 = 280,840.88 : x
  2. Step 2: Convert to fraction form
    519,304.88/716,642.89 = 280,840.88/x
  3. Step 3: Cross multiply
    519,304.88x = 716,642.89 × 280,840.88
  4. Step 4: Simplify right side
    519,304.88x = 201,262,615,588.03
  5. Step 5: Solve for x
    x = 201,262,615,588.03/519,304.88
  6. Step 6: Final answer
    x = 387,561.58

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.