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Finding the Fourth Proportional to 340,935.60, 512,017.80 and 329,876.40

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Solution

The fourth proportional to 340,935.60, 512,017.80 and 329,876.40 is: 495,409.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,935.60 : 512,017.80 = 329,876.40 : x
  2. Step 2: Convert to fraction form
    340,935.60/512,017.80 = 329,876.40/x
  3. Step 3: Cross multiply
    340,935.60x = 512,017.80 × 329,876.40
  4. Step 4: Simplify right side
    340,935.60x = 168,902,588,599.92
  5. Step 5: Solve for x
    x = 168,902,588,599.92/340,935.60
  6. Step 6: Final answer
    x = 495,409.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.