Home / 785,999.10-1,178,998.65-217,379.10

Finding the Fourth Proportional to 785,999.10, 1,178,998.65 and 217,379.10

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Solution

The fourth proportional to 785,999.10, 1,178,998.65 and 217,379.10 is: 326,068.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,999.10 : 1,178,998.65 = 217,379.10 : x
  2. Step 2: Convert to fraction form
    785,999.10/1,178,998.65 = 217,379.10/x
  3. Step 3: Cross multiply
    785,999.10x = 1,178,998.65 × 217,379.10
  4. Step 4: Simplify right side
    785,999.10x = 256,289,665,438.22
  5. Step 5: Solve for x
    x = 256,289,665,438.22/785,999.10
  6. Step 6: Final answer
    x = 326,068.65

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Similar ratio
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1.5x scale

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.