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Finding the Fourth Proportional to 551,615.16, 761,311.26 and 336,878.76

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Solution

The fourth proportional to 551,615.16, 761,311.26 and 336,878.76 is: 464,942.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,615.16 : 761,311.26 = 336,878.76 : x
  2. Step 2: Convert to fraction form
    551,615.16/761,311.26 = 336,878.76/x
  3. Step 3: Cross multiply
    551,615.16x = 761,311.26 × 336,878.76
  4. Step 4: Simplify right side
    551,615.16x = 256,469,593,242.84
  5. Step 5: Solve for x
    x = 256,469,593,242.84/551,615.16
  6. Step 6: Final answer
    x = 464,942.97

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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.