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Finding the Fourth Proportional to 620,612.52, 856,446.08 and 352,340.52

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Solution

The fourth proportional to 620,612.52, 856,446.08 and 352,340.52 is: 486,230.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    620,612.52 : 856,446.08 = 352,340.52 : x
  2. Step 2: Convert to fraction form
    620,612.52/856,446.08 = 352,340.52/x
  3. Step 3: Cross multiply
    620,612.52x = 856,446.08 × 352,340.52
  4. Step 4: Simplify right side
    620,612.52x = 301,760,657,179.16
  5. Step 5: Solve for x
    x = 301,760,657,179.16/620,612.52
  6. Step 6: Final answer
    x = 486,230.37

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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.