Home / 870,997.16-1,306,495.13-272,009.65

Finding the Fourth Proportional to 870,997.16, 1,306,495.13 and 272,009.65

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Solution

The fourth proportional to 870,997.16, 1,306,495.13 and 272,009.65 is: 408,014.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,997.16 : 1,306,495.13 = 272,009.65 : x
  2. Step 2: Convert to fraction form
    870,997.16/1,306,495.13 = 272,009.65/x
  3. Step 3: Cross multiply
    870,997.16x = 1,306,495.13 × 272,009.65
  4. Step 4: Simplify right side
    870,997.16x = 355,379,280,451.79
  5. Step 5: Solve for x
    x = 355,379,280,451.79/870,997.16
  6. Step 6: Final answer
    x = 408,014.28

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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.