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Finding the Fourth Proportional to 615,743.91, 849,741.03 and 343,802.61

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Solution

The fourth proportional to 615,743.91, 849,741.03 and 343,802.61 is: 474,455.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,743.91 : 849,741.03 = 343,802.61 : x
  2. Step 2: Convert to fraction form
    615,743.91/849,741.03 = 343,802.61/x
  3. Step 3: Cross multiply
    615,743.91x = 849,741.03 × 343,802.61
  4. Step 4: Simplify right side
    615,743.91x = 292,143,183,938.09
  5. Step 5: Solve for x
    x = 292,143,183,938.09/615,743.91
  6. Step 6: Final answer
    x = 474,455.66

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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.