Home / 1,217,844.79-1,827,172.88-408,309.32

Finding the Fourth Proportional to 1,217,844.79, 1,827,172.88 and 408,309.32

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Solution

The fourth proportional to 1,217,844.79, 1,827,172.88 and 408,309.32 is: 612,599.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,217,844.79 : 1,827,172.88 = 408,309.32 : x
  2. Step 2: Convert to fraction form
    1,217,844.79/1,827,172.88 = 408,309.32/x
  3. Step 3: Cross multiply
    1,217,844.79x = 1,827,172.88 × 408,309.32
  4. Step 4: Simplify right side
    1,217,844.79x = 746,051,708,040.15
  5. Step 5: Solve for x
    x = 746,051,708,040.15/1,217,844.79
  6. Step 6: Final answer
    x = 612,599.99

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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.