Home / 549,619.20-823,948.80-212,889.60

Finding the Fourth Proportional to 549,619.20, 823,948.80 and 212,889.60

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Solution

The fourth proportional to 549,619.20, 823,948.80 and 212,889.60 is: 319,148.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,619.20 : 823,948.80 = 212,889.60 : x
  2. Step 2: Convert to fraction form
    549,619.20/823,948.80 = 212,889.60/x
  3. Step 3: Cross multiply
    549,619.20x = 823,948.80 × 212,889.60
  4. Step 4: Simplify right side
    549,619.20x = 175,410,130,452.48
  5. Step 5: Solve for x
    x = 175,410,130,452.48/549,619.20
  6. Step 6: Final answer
    x = 319,148.48

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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.