Home / 989,086.33-1,483,613.29-315,158.51

Finding the Fourth Proportional to 989,086.33, 1,483,613.29 and 315,158.51

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Solution

The fourth proportional to 989,086.33, 1,483,613.29 and 315,158.51 is: 472,732.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,086.33 : 1,483,613.29 = 315,158.51 : x
  2. Step 2: Convert to fraction form
    989,086.33/1,483,613.29 = 315,158.51/x
  3. Step 3: Cross multiply
    989,086.33x = 1,483,613.29 × 315,158.51
  4. Step 4: Simplify right side
    989,086.33x = 467,573,357,109.20
  5. Step 5: Solve for x
    x = 467,573,357,109.20/989,086.33
  6. Step 6: Final answer
    x = 472,732.61

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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.