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Finding the Fourth Proportional to 615,295.11, 849,107.34 and 339,653.07

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Solution

The fourth proportional to 615,295.11, 849,107.34 and 339,653.07 is: 468,721.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,295.11 : 849,107.34 = 339,653.07 : x
  2. Step 2: Convert to fraction form
    615,295.11/849,107.34 = 339,653.07/x
  3. Step 3: Cross multiply
    615,295.11x = 849,107.34 × 339,653.07
  4. Step 4: Simplify right side
    615,295.11x = 288,401,914,790.53
  5. Step 5: Solve for x
    x = 288,401,914,790.53/615,295.11
  6. Step 6: Final answer
    x = 468,721.29

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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.