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Finding the Fourth Proportional to 613,820.37, 847,114.71 and 372,113.13

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Solution

The fourth proportional to 613,820.37, 847,114.71 and 372,113.13 is: 513,541.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,820.37 : 847,114.71 = 372,113.13 : x
  2. Step 2: Convert to fraction form
    613,820.37/847,114.71 = 372,113.13/x
  3. Step 3: Cross multiply
    613,820.37x = 847,114.71 × 372,113.13
  4. Step 4: Simplify right side
    613,820.37x = 315,222,507,988.40
  5. Step 5: Solve for x
    x = 315,222,507,988.40/613,820.37
  6. Step 6: Final answer
    x = 513,541.94

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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.