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Finding the Fourth Proportional to 615,818.86, 849,828.35 and 343,884.54

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Solution

The fourth proportional to 615,818.86, 849,828.35 and 343,884.54 is: 474,559.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,818.86 : 849,828.35 = 343,884.54 : x
  2. Step 2: Convert to fraction form
    615,818.86/849,828.35 = 343,884.54/x
  3. Step 3: Cross multiply
    615,818.86x = 849,828.35 × 343,884.54
  4. Step 4: Simplify right side
    615,818.86x = 292,242,831,218.71
  5. Step 5: Solve for x
    x = 292,242,831,218.71/615,818.86
  6. Step 6: Final answer
    x = 474,559.73

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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.