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Finding the Fourth Proportional to 309,503.34, 424,333.04 and 303,904.62

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Solution

The fourth proportional to 309,503.34, 424,333.04 and 303,904.62 is: 416,657.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,503.34 : 424,333.04 = 303,904.62 : x
  2. Step 2: Convert to fraction form
    309,503.34/424,333.04 = 303,904.62/x
  3. Step 3: Cross multiply
    309,503.34x = 424,333.04 × 303,904.62
  4. Step 4: Simplify right side
    309,503.34x = 128,956,769,755.12
  5. Step 5: Solve for x
    x = 128,956,769,755.12/309,503.34
  6. Step 6: Final answer
    x = 416,657.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.