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Finding the Fourth Proportional to 304,498.60, 456,747.90 and 289,983.40

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Solution

The fourth proportional to 304,498.60, 456,747.90 and 289,983.40 is: 434,975.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,498.60 : 456,747.90 = 289,983.40 : x
  2. Step 2: Convert to fraction form
    304,498.60/456,747.90 = 289,983.40/x
  3. Step 3: Cross multiply
    304,498.60x = 456,747.90 × 289,983.40
  4. Step 4: Simplify right side
    304,498.60x = 132,449,308,984.86
  5. Step 5: Solve for x
    x = 132,449,308,984.86/304,498.60
  6. Step 6: Final answer
    x = 434,975.10

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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.