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Finding the Fourth Proportional to 539,004.80, 743,406.72 and 348,065.12

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Solution

The fourth proportional to 539,004.80, 743,406.72 and 348,065.12 is: 480,058.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,004.80 : 743,406.72 = 348,065.12 : x
  2. Step 2: Convert to fraction form
    539,004.80/743,406.72 = 348,065.12/x
  3. Step 3: Cross multiply
    539,004.80x = 743,406.72 × 348,065.12
  4. Step 4: Simplify right side
    539,004.80x = 258,753,949,205.61
  5. Step 5: Solve for x
    x = 258,753,949,205.61/539,004.80
  6. Step 6: Final answer
    x = 480,058.71

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1.5x scale

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.