Home / 1,259,987.20-1,889,489.40-549,530.80

Finding the Fourth Proportional to 1,259,987.20, 1,889,489.40 and 549,530.80

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Solution

The fourth proportional to 1,259,987.20, 1,889,489.40 and 549,530.80 is: 824,081.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,987.20 : 1,889,489.40 = 549,530.80 : x
  2. Step 2: Convert to fraction form
    1,259,987.20/1,889,489.40 = 549,530.80/x
  3. Step 3: Cross multiply
    1,259,987.20x = 1,889,489.40 × 549,530.80
  4. Step 4: Simplify right side
    1,259,987.20x = 1,038,332,621,573.52
  5. Step 5: Solve for x
    x = 1,038,332,621,573.52/1,259,987.20
  6. Step 6: Final answer
    x = 824,081.88

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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.