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Finding the Fourth Proportional to 510,031.08, 703,833.09 and 280,574.95

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Solution

The fourth proportional to 510,031.08, 703,833.09 and 280,574.95 is: 387,188.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,031.08 : 703,833.09 = 280,574.95 : x
  2. Step 2: Convert to fraction form
    510,031.08/703,833.09 = 280,574.95/x
  3. Step 3: Cross multiply
    510,031.08x = 703,833.09 × 280,574.95
  4. Step 4: Simplify right side
    510,031.08x = 197,477,934,035.10
  5. Step 5: Solve for x
    x = 197,477,934,035.10/510,031.08
  6. Step 6: Final answer
    x = 387,188.04

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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.