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Finding the Fourth Proportional to 329,940.20, 495,947.10 and 323,719.40

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Solution

The fourth proportional to 329,940.20, 495,947.10 and 323,719.40 is: 486,596.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,940.20 : 495,947.10 = 323,719.40 : x
  2. Step 2: Convert to fraction form
    329,940.20/495,947.10 = 323,719.40/x
  3. Step 3: Cross multiply
    329,940.20x = 495,947.10 × 323,719.40
  4. Step 4: Simplify right side
    329,940.20x = 160,547,697,643.74
  5. Step 5: Solve for x
    x = 160,547,697,643.74/329,940.20
  6. Step 6: Final answer
    x = 486,596.35

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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.