Home / 1,206,509.20-1,664,565.84-771,181.20

Finding the Fourth Proportional to 1,206,509.20, 1,664,565.84 and 771,181.20

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Solution

The fourth proportional to 1,206,509.20, 1,664,565.84 and 771,181.20 is: 1,063,963.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,509.20 : 1,664,565.84 = 771,181.20 : x
  2. Step 2: Convert to fraction form
    1,206,509.20/1,664,565.84 = 771,181.20/x
  3. Step 3: Cross multiply
    1,206,509.20x = 1,664,565.84 × 771,181.20
  4. Step 4: Simplify right side
    1,206,509.20x = 1,283,681,881,970.21
  5. Step 5: Solve for x
    x = 1,283,681,881,970.21/1,206,509.20
  6. Step 6: Final answer
    x = 1,063,963.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.