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Finding the Fourth Proportional to 601,771.05, 830,529.18 and 372,402.20

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Solution

The fourth proportional to 601,771.05, 830,529.18 and 372,402.20 is: 513,967.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    601,771.05 : 830,529.18 = 372,402.20 : x
  2. Step 2: Convert to fraction form
    601,771.05/830,529.18 = 372,402.20/x
  3. Step 3: Cross multiply
    601,771.05x = 830,529.18 × 372,402.20
  4. Step 4: Simplify right side
    601,771.05x = 309,290,897,584.38
  5. Step 5: Solve for x
    x = 309,290,897,584.38/601,771.05
  6. Step 6: Final answer
    x = 513,967.73

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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.