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Finding the Fourth Proportional to 393,732.60, 590,598.90 and 243,485.70

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Solution

The fourth proportional to 393,732.60, 590,598.90 and 243,485.70 is: 365,228.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,732.60 : 590,598.90 = 243,485.70 : x
  2. Step 2: Convert to fraction form
    393,732.60/590,598.90 = 243,485.70/x
  3. Step 3: Cross multiply
    393,732.60x = 590,598.90 × 243,485.70
  4. Step 4: Simplify right side
    393,732.60x = 143,802,386,585.73
  5. Step 5: Solve for x
    x = 143,802,386,585.73/393,732.60
  6. Step 6: Final answer
    x = 365,228.55

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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.