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Finding the Fourth Proportional to 342,007.20, 479,597.40 and 342,007.20

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Solution

The fourth proportional to 342,007.20, 479,597.40 and 342,007.20 is: 479,597.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,007.20 : 479,597.40 = 342,007.20 : x
  2. Step 2: Convert to fraction form
    342,007.20/479,597.40 = 342,007.20/x
  3. Step 3: Cross multiply
    342,007.20x = 479,597.40 × 342,007.20
  4. Step 4: Simplify right side
    342,007.20x = 164,025,763,901.28
  5. Step 5: Solve for x
    x = 164,025,763,901.28/342,007.20
  6. Step 6: Final answer
    x = 479,597.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.