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Finding the Fourth Proportional to 615,745.42, 849,743.10 and 343,804.12

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Solution

The fourth proportional to 615,745.42, 849,743.10 and 343,804.12 is: 474,457.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,745.42 : 849,743.10 = 343,804.12 : x
  2. Step 2: Convert to fraction form
    615,745.42/849,743.10 = 343,804.12/x
  3. Step 3: Cross multiply
    615,745.42x = 849,743.10 × 343,804.12
  4. Step 4: Simplify right side
    615,745.42x = 292,145,178,721.57
  5. Step 5: Solve for x
    x = 292,145,178,721.57/615,745.42
  6. Step 6: Final answer
    x = 474,457.74

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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.