Home / 493,128.81-680,335.20-364,377.69

Finding the Fourth Proportional to 493,128.81, 680,335.20 and 364,377.69

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Solution

The fourth proportional to 493,128.81, 680,335.20 and 364,377.69 is: 502,706.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,128.81 : 680,335.20 = 364,377.69 : x
  2. Step 2: Convert to fraction form
    493,128.81/680,335.20 = 364,377.69/x
  3. Step 3: Cross multiply
    493,128.81x = 680,335.20 × 364,377.69
  4. Step 4: Simplify right side
    493,128.81x = 247,898,968,601.69
  5. Step 5: Solve for x
    x = 247,898,968,601.69/493,128.81
  6. Step 6: Final answer
    x = 502,706.32

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1.5x scale

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.