Home / 1,330,387.20-1,995,386.40-383,659.20

Finding the Fourth Proportional to 1,330,387.20, 1,995,386.40 and 383,659.20

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Solution

The fourth proportional to 1,330,387.20, 1,995,386.40 and 383,659.20 is: 575,432.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,387.20 : 1,995,386.40 = 383,659.20 : x
  2. Step 2: Convert to fraction form
    1,330,387.20/1,995,386.40 = 383,659.20/x
  3. Step 3: Cross multiply
    1,330,387.20x = 1,995,386.40 × 383,659.20
  4. Step 4: Simplify right side
    1,330,387.20x = 765,548,349,914.88
  5. Step 5: Solve for x
    x = 765,548,349,914.88/1,330,387.20
  6. Step 6: Final answer
    x = 575,432.74

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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.