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Finding the Fourth Proportional to 325,527.04, 487,800.20 and 290,051.89

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Solution

The fourth proportional to 325,527.04, 487,800.20 and 290,051.89 is: 434,640.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,527.04 : 487,800.20 = 290,051.89 : x
  2. Step 2: Convert to fraction form
    325,527.04/487,800.20 = 290,051.89/x
  3. Step 3: Cross multiply
    325,527.04x = 487,800.20 × 290,051.89
  4. Step 4: Simplify right side
    325,527.04x = 141,487,368,502.12
  5. Step 5: Solve for x
    x = 141,487,368,502.12/325,527.04
  6. Step 6: Final answer
    x = 434,640.91

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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.