Home / 777,423.12-1,166,473.51-272,346.40

Finding the Fourth Proportional to 777,423.12, 1,166,473.51 and 272,346.40

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Solution

The fourth proportional to 777,423.12, 1,166,473.51 and 272,346.40 is: 408,638.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,423.12 : 1,166,473.51 = 272,346.40 : x
  2. Step 2: Convert to fraction form
    777,423.12/1,166,473.51 = 272,346.40/x
  3. Step 3: Cross multiply
    777,423.12x = 1,166,473.51 × 272,346.40
  4. Step 4: Simplify right side
    777,423.12x = 317,684,861,921.09
  5. Step 5: Solve for x
    x = 317,684,861,921.09/777,423.12
  6. Step 6: Final answer
    x = 408,638.30

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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.