Home / 885,708.65-1,328,773.86-286,669.80

Finding the Fourth Proportional to 885,708.65, 1,328,773.86 and 286,669.80

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Solution

The fourth proportional to 885,708.65, 1,328,773.86 and 286,669.80 is: 430,072.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,708.65 : 1,328,773.86 = 286,669.80 : x
  2. Step 2: Convert to fraction form
    885,708.65/1,328,773.86 = 286,669.80/x
  3. Step 3: Cross multiply
    885,708.65x = 1,328,773.86 × 286,669.80
  4. Step 4: Simplify right side
    885,708.65x = 380,919,336,691.43
  5. Step 5: Solve for x
    x = 380,919,336,691.43/885,708.65
  6. Step 6: Final answer
    x = 430,072.96

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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.