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Finding the Fourth Proportional to 510,927.27, 705,134.63 and 281,507.62

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Solution

The fourth proportional to 510,927.27, 705,134.63 and 281,507.62 is: 388,510.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,927.27 : 705,134.63 = 281,507.62 : x
  2. Step 2: Convert to fraction form
    510,927.27/705,134.63 = 281,507.62/x
  3. Step 3: Cross multiply
    510,927.27x = 705,134.63 × 281,507.62
  4. Step 4: Simplify right side
    510,927.27x = 198,500,771,470.88
  5. Step 5: Solve for x
    x = 198,500,771,470.88/510,927.27
  6. Step 6: Final answer
    x = 388,510.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.