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Finding the Fourth Proportional to 510,012.37, 703,794.88 and 280,555.11

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Solution

The fourth proportional to 510,012.37, 703,794.88 and 280,555.11 is: 387,153.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,012.37 : 703,794.88 = 280,555.11 : x
  2. Step 2: Convert to fraction form
    510,012.37/703,794.88 = 280,555.11/x
  3. Step 3: Cross multiply
    510,012.37x = 703,794.88 × 280,555.11
  4. Step 4: Simplify right side
    510,012.37x = 197,453,249,975.84
  5. Step 5: Solve for x
    x = 197,453,249,975.84/510,012.37
  6. Step 6: Final answer
    x = 387,153.84

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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.