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Finding the Fourth Proportional to 452,645.60, 679,357.20 and 200,314.40

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Solution

The fourth proportional to 452,645.60, 679,357.20 and 200,314.40 is: 300,643.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,645.60 : 679,357.20 = 200,314.40 : x
  2. Step 2: Convert to fraction form
    452,645.60/679,357.20 = 200,314.40/x
  3. Step 3: Cross multiply
    452,645.60x = 679,357.20 × 200,314.40
  4. Step 4: Simplify right side
    452,645.60x = 136,085,029,903.68
  5. Step 5: Solve for x
    x = 136,085,029,903.68/452,645.60
  6. Step 6: Final answer
    x = 300,643.66

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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.