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Finding the Fourth Proportional to 515,566.10, 774,041.70 and 302,552.30

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Solution

The fourth proportional to 515,566.10, 774,041.70 and 302,552.30 is: 454,234.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,566.10 : 774,041.70 = 302,552.30 : x
  2. Step 2: Convert to fraction form
    515,566.10/774,041.70 = 302,552.30/x
  3. Step 3: Cross multiply
    515,566.10x = 774,041.70 × 302,552.30
  4. Step 4: Simplify right side
    515,566.10x = 234,188,096,630.91
  5. Step 5: Solve for x
    x = 234,188,096,630.91/515,566.10
  6. Step 6: Final answer
    x = 454,234.86

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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.