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Finding the Fourth Proportional to 611,325.20, 843,612.34 and 366,448.28

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Solution

The fourth proportional to 611,325.20, 843,612.34 and 366,448.28 is: 505,688.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,325.20 : 843,612.34 = 366,448.28 : x
  2. Step 2: Convert to fraction form
    611,325.20/843,612.34 = 366,448.28/x
  3. Step 3: Cross multiply
    611,325.20x = 843,612.34 × 366,448.28
  4. Step 4: Simplify right side
    611,325.20x = 309,140,289,935.98
  5. Step 5: Solve for x
    x = 309,140,289,935.98/611,325.20
  6. Step 6: Final answer
    x = 505,688.77

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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.