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Finding the Fourth Proportional to 615,873.88, 849,896.98 and 343,938.90

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Solution

The fourth proportional to 615,873.88, 849,896.98 and 343,938.90 is: 474,630.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,873.88 : 849,896.98 = 343,938.90 : x
  2. Step 2: Convert to fraction form
    615,873.88/849,896.98 = 343,938.90/x
  3. Step 3: Cross multiply
    615,873.88x = 849,896.98 × 343,938.90
  4. Step 4: Simplify right side
    615,873.88x = 292,312,632,414.52
  5. Step 5: Solve for x
    x = 292,312,632,414.52/615,873.88
  6. Step 6: Final answer
    x = 474,630.67

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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.