Home / 831,490.36-1,147,490.22-463,999.66

Finding the Fourth Proportional to 831,490.36, 1,147,490.22 and 463,999.66

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Solution

The fourth proportional to 831,490.36, 1,147,490.22 and 463,999.66 is: 640,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,490.36 : 1,147,490.22 = 463,999.66 : x
  2. Step 2: Convert to fraction form
    831,490.36/1,147,490.22 = 463,999.66/x
  3. Step 3: Cross multiply
    831,490.36x = 1,147,490.22 × 463,999.66
  4. Step 4: Simplify right side
    831,490.36x = 532,435,071,933.33
  5. Step 5: Solve for x
    x = 532,435,071,933.33/831,490.36
  6. Step 6: Final answer
    x = 640,338.24

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.