Home / 932,738.89-1,399,109.01-258,820.87

Finding the Fourth Proportional to 932,738.89, 1,399,109.01 and 258,820.87

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Solution

The fourth proportional to 932,738.89, 1,399,109.01 and 258,820.87 is: 388,231.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    932,738.89 : 1,399,109.01 = 258,820.87 : x
  2. Step 2: Convert to fraction form
    932,738.89/1,399,109.01 = 258,820.87/x
  3. Step 3: Cross multiply
    932,738.89x = 1,399,109.01 × 258,820.87
  4. Step 4: Simplify right side
    932,738.89x = 362,118,611,193.04
  5. Step 5: Solve for x
    x = 362,118,611,193.04/932,738.89
  6. Step 6: Final answer
    x = 388,231.49

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Double scale
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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.