Home / 672,009.93-1,007,664.87-316,928.61

Finding the Fourth Proportional to 672,009.93, 1,007,664.87 and 316,928.61

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Solution

The fourth proportional to 672,009.93, 1,007,664.87 and 316,928.61 is: 475,227.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,009.93 : 1,007,664.87 = 316,928.61 : x
  2. Step 2: Convert to fraction form
    672,009.93/1,007,664.87 = 316,928.61/x
  3. Step 3: Cross multiply
    672,009.93x = 1,007,664.87 × 316,928.61
  4. Step 4: Simplify right side
    672,009.93x = 319,357,826,594.93
  5. Step 5: Solve for x
    x = 319,357,826,594.93/672,009.93
  6. Step 6: Final answer
    x = 475,227.84

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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.