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Finding the Fourth Proportional to 615,277.53, 849,083.16 and 339,635.55

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Solution

The fourth proportional to 615,277.53, 849,083.16 and 339,635.55 is: 468,697.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,277.53 : 849,083.16 = 339,635.55 : x
  2. Step 2: Convert to fraction form
    615,277.53/849,083.16 = 339,635.55/x
  3. Step 3: Cross multiply
    615,277.53x = 849,083.16 × 339,635.55
  4. Step 4: Simplify right side
    615,277.53x = 288,378,826,042.34
  5. Step 5: Solve for x
    x = 288,378,826,042.34/615,277.53
  6. Step 6: Final answer
    x = 468,697.15

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1.5x scale

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.