Home / 693,150.40-1,039,725.60-647,531.20

Finding the Fourth Proportional to 693,150.40, 1,039,725.60 and 647,531.20

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Solution

The fourth proportional to 693,150.40, 1,039,725.60 and 647,531.20 is: 971,296.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,150.40 : 1,039,725.60 = 647,531.20 : x
  2. Step 2: Convert to fraction form
    693,150.40/1,039,725.60 = 647,531.20/x
  3. Step 3: Cross multiply
    693,150.40x = 1,039,725.60 × 647,531.20
  4. Step 4: Simplify right side
    693,150.40x = 673,254,765,438.72
  5. Step 5: Solve for x
    x = 673,254,765,438.72/693,150.40
  6. Step 6: Final answer
    x = 971,296.80

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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.