Home / 1,330,385.20-1,995,383.40-383,657.20

Finding the Fourth Proportional to 1,330,385.20, 1,995,383.40 and 383,657.20

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Solution

The fourth proportional to 1,330,385.20, 1,995,383.40 and 383,657.20 is: 575,429.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,385.20 : 1,995,383.40 = 383,657.20 : x
  2. Step 2: Convert to fraction form
    1,330,385.20/1,995,383.40 = 383,657.20/x
  3. Step 3: Cross multiply
    1,330,385.20x = 1,995,383.40 × 383,657.20
  4. Step 4: Simplify right side
    1,330,385.20x = 765,543,208,170.48
  5. Step 5: Solve for x
    x = 765,543,208,170.48/1,330,385.20
  6. Step 6: Final answer
    x = 575,429.74

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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.