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Finding the Fourth Proportional to 866,993.40, 1,300,358.72 and 235,956.40

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Solution

The fourth proportional to 866,993.40, 1,300,358.72 and 235,956.40 is: 353,898.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,993.40 : 1,300,358.72 = 235,956.40 : x
  2. Step 2: Convert to fraction form
    866,993.40/1,300,358.72 = 235,956.40/x
  3. Step 3: Cross multiply
    866,993.40x = 1,300,358.72 × 235,956.40
  4. Step 4: Simplify right side
    866,993.40x = 306,827,962,279.81
  5. Step 5: Solve for x
    x = 306,827,962,279.81/866,993.40
  6. Step 6: Final answer
    x = 353,898.84

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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.