Home / 432,983.60-649,475.40-328,007.60

Finding the Fourth Proportional to 432,983.60, 649,475.40 and 328,007.60

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Solution

The fourth proportional to 432,983.60, 649,475.40 and 328,007.60 is: 492,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,983.60 : 649,475.40 = 328,007.60 : x
  2. Step 2: Convert to fraction form
    432,983.60/649,475.40 = 328,007.60/x
  3. Step 3: Cross multiply
    432,983.60x = 649,475.40 × 328,007.60
  4. Step 4: Simplify right side
    432,983.60x = 213,032,867,213.04
  5. Step 5: Solve for x
    x = 213,032,867,213.04/432,983.60
  6. Step 6: Final answer
    x = 492,011.40

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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.