Home / 926,648.58-1,278,712.40-513,155.64

Finding the Fourth Proportional to 926,648.58, 1,278,712.40 and 513,155.64

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Solution

The fourth proportional to 926,648.58, 1,278,712.40 and 513,155.64 is: 708,120.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,648.58 : 1,278,712.40 = 513,155.64 : x
  2. Step 2: Convert to fraction form
    926,648.58/1,278,712.40 = 513,155.64/x
  3. Step 3: Cross multiply
    926,648.58x = 1,278,712.40 × 513,155.64
  4. Step 4: Simplify right side
    926,648.58x = 656,178,479,997.94
  5. Step 5: Solve for x
    x = 656,178,479,997.94/926,648.58
  6. Step 6: Final answer
    x = 708,120.09

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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.