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Finding the Fourth Proportional to 418,847.96, 577,693.42 and 290,002.07

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Solution

The fourth proportional to 418,847.96, 577,693.42 and 290,002.07 is: 399,983.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,847.96 : 577,693.42 = 290,002.07 : x
  2. Step 2: Convert to fraction form
    418,847.96/577,693.42 = 290,002.07/x
  3. Step 3: Cross multiply
    418,847.96x = 577,693.42 × 290,002.07
  4. Step 4: Simplify right side
    418,847.96x = 167,532,286,175.37
  5. Step 5: Solve for x
    x = 167,532,286,175.37/418,847.96
  6. Step 6: Final answer
    x = 399,983.53

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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.