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Finding the Fourth Proportional to 615,203.43, 849,039.39 and 373,430.58

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Solution

The fourth proportional to 615,203.43, 849,039.39 and 373,430.58 is: 515,369.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,203.43 : 849,039.39 = 373,430.58 : x
  2. Step 2: Convert to fraction form
    615,203.43/849,039.39 = 373,430.58/x
  3. Step 3: Cross multiply
    615,203.43x = 849,039.39 × 373,430.58
  4. Step 4: Simplify right side
    615,203.43x = 317,057,271,850.55
  5. Step 5: Solve for x
    x = 317,057,271,850.55/615,203.43
  6. Step 6: Final answer
    x = 515,369.81

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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.