Home / 870,147.44-1,306,502.42-486,647.66

Finding the Fourth Proportional to 870,147.44, 1,306,502.42 and 486,647.66

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Solution

The fourth proportional to 870,147.44, 1,306,502.42 and 486,647.66 is: 730,688.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    870,147.44 : 1,306,502.42 = 486,647.66 : x
  2. Step 2: Convert to fraction form
    870,147.44/1,306,502.42 = 486,647.66/x
  3. Step 3: Cross multiply
    870,147.44x = 1,306,502.42 × 486,647.66
  4. Step 4: Simplify right side
    870,147.44x = 635,806,345,477.34
  5. Step 5: Solve for x
    x = 635,806,345,477.34/870,147.44
  6. Step 6: Final answer
    x = 730,688.06

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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.