Home / 1,242,790.56-1,864,180.08-389,924.64

Finding the Fourth Proportional to 1,242,790.56, 1,864,180.08 and 389,924.64

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Solution

The fourth proportional to 1,242,790.56, 1,864,180.08 and 389,924.64 is: 584,885.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,790.56 : 1,864,180.08 = 389,924.64 : x
  2. Step 2: Convert to fraction form
    1,242,790.56/1,864,180.08 = 389,924.64/x
  3. Step 3: Cross multiply
    1,242,790.56x = 1,864,180.08 × 389,924.64
  4. Step 4: Simplify right side
    1,242,790.56x = 726,889,746,589.17
  5. Step 5: Solve for x
    x = 726,889,746,589.17/1,242,790.56
  6. Step 6: Final answer
    x = 584,885.15

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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.