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Finding the Fourth Proportional to 510,893.66, 764,970.02 and 285,612.50

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Solution

The fourth proportional to 510,893.66, 764,970.02 and 285,612.50 is: 427,652.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,893.66 : 764,970.02 = 285,612.50 : x
  2. Step 2: Convert to fraction form
    510,893.66/764,970.02 = 285,612.50/x
  3. Step 3: Cross multiply
    510,893.66x = 764,970.02 × 285,612.50
  4. Step 4: Simplify right side
    510,893.66x = 218,484,994,584.34
  5. Step 5: Solve for x
    x = 218,484,994,584.34/510,893.66
  6. Step 6: Final answer
    x = 427,652.59

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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.