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Finding the Fourth Proportional to 522,801.58, 721,464.69 and 290,264.02

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Solution

The fourth proportional to 522,801.58, 721,464.69 and 290,264.02 is: 400,563.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,801.58 : 721,464.69 = 290,264.02 : x
  2. Step 2: Convert to fraction form
    522,801.58/721,464.69 = 290,264.02/x
  3. Step 3: Cross multiply
    522,801.58x = 721,464.69 × 290,264.02
  4. Step 4: Simplify right side
    522,801.58x = 209,415,241,207.45
  5. Step 5: Solve for x
    x = 209,415,241,207.45/522,801.58
  6. Step 6: Final answer
    x = 400,563.52

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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.