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Finding the Fourth Proportional to 556,026.60, 834,039.90 and 331,640.40

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Solution

The fourth proportional to 556,026.60, 834,039.90 and 331,640.40 is: 497,460.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,026.60 : 834,039.90 = 331,640.40 : x
  2. Step 2: Convert to fraction form
    556,026.60/834,039.90 = 331,640.40/x
  3. Step 3: Cross multiply
    556,026.60x = 834,039.90 × 331,640.40
  4. Step 4: Simplify right side
    556,026.60x = 276,601,326,051.96
  5. Step 5: Solve for x
    x = 276,601,326,051.96/556,026.60
  6. Step 6: Final answer
    x = 497,460.60

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Similar ratio
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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.