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Finding the Fourth Proportional to 626,671.46, 864,808.38 and 340,191.74

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Solution

The fourth proportional to 626,671.46, 864,808.38 and 340,191.74 is: 469,465.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,671.46 : 864,808.38 = 340,191.74 : x
  2. Step 2: Convert to fraction form
    626,671.46/864,808.38 = 340,191.74/x
  3. Step 3: Cross multiply
    626,671.46x = 864,808.38 × 340,191.74
  4. Step 4: Simplify right side
    626,671.46x = 294,200,667,558.78
  5. Step 5: Solve for x
    x = 294,200,667,558.78/626,671.46
  6. Step 6: Final answer
    x = 469,465.56

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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.