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Finding the Fourth Proportional to 611,360.88, 843,687.96 and 339,446.32

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Solution

The fourth proportional to 611,360.88, 843,687.96 and 339,446.32 is: 468,441.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,360.88 : 843,687.96 = 339,446.32 : x
  2. Step 2: Convert to fraction form
    611,360.88/843,687.96 = 339,446.32/x
  3. Step 3: Cross multiply
    611,360.88x = 843,687.96 × 339,446.32
  4. Step 4: Simplify right side
    611,360.88x = 286,386,773,250.31
  5. Step 5: Solve for x
    x = 286,386,773,250.31/611,360.88
  6. Step 6: Final answer
    x = 468,441.44

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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.