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Finding the Fourth Proportional to 613,820.25, 847,114.53 and 372,113.01

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Solution

The fourth proportional to 613,820.25, 847,114.53 and 372,113.01 is: 513,541.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,820.25 : 847,114.53 = 372,113.01 : x
  2. Step 2: Convert to fraction form
    613,820.25/847,114.53 = 372,113.01/x
  3. Step 3: Cross multiply
    613,820.25x = 847,114.53 × 372,113.01
  4. Step 4: Simplify right side
    613,820.25x = 315,222,337,573.04
  5. Step 5: Solve for x
    x = 315,222,337,573.04/613,820.25
  6. Step 6: Final answer
    x = 513,541.77

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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.