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Finding the Fourth Proportional to 325,528.04, 487,801.70 and 290,052.90

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Solution

The fourth proportional to 325,528.04, 487,801.70 and 290,052.90 is: 434,642.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,528.04 : 487,801.70 = 290,052.90 : x
  2. Step 2: Convert to fraction form
    325,528.04/487,801.70 = 290,052.90/x
  3. Step 3: Cross multiply
    325,528.04x = 487,801.70 × 290,052.90
  4. Step 4: Simplify right side
    325,528.04x = 141,488,297,709.93
  5. Step 5: Solve for x
    x = 141,488,297,709.93/325,528.04
  6. Step 6: Final answer
    x = 434,642.43

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1.5x scale

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.