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Finding the Fourth Proportional to 539,490.75, 809,275.01 and 207,066.75

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Solution

The fourth proportional to 539,490.75, 809,275.01 and 207,066.75 is: 310,615.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,490.75 : 809,275.01 = 207,066.75 : x
  2. Step 2: Convert to fraction form
    539,490.75/809,275.01 = 207,066.75/x
  3. Step 3: Cross multiply
    539,490.75x = 809,275.01 × 207,066.75
  4. Step 4: Simplify right side
    539,490.75x = 167,573,946,176.92
  5. Step 5: Solve for x
    x = 167,573,946,176.92/539,490.75
  6. Step 6: Final answer
    x = 310,615.05

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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.