Home / 831,288.76-1,147,243.42-463,881.40

Finding the Fourth Proportional to 831,288.76, 1,147,243.42 and 463,881.40

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Solution

The fourth proportional to 831,288.76, 1,147,243.42 and 463,881.40 is: 640,192.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,288.76 : 1,147,243.42 = 463,881.40 : x
  2. Step 2: Convert to fraction form
    831,288.76/1,147,243.42 = 463,881.40/x
  3. Step 3: Cross multiply
    831,288.76x = 1,147,243.42 × 463,881.40
  4. Step 4: Simplify right side
    831,288.76x = 532,184,883,810.39
  5. Step 5: Solve for x
    x = 532,184,883,810.39/831,288.76
  6. Step 6: Final answer
    x = 640,192.57

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Double scale
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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.