Home / 549,911.20-824,386.80-213,181.60

Finding the Fourth Proportional to 549,911.20, 824,386.80 and 213,181.60

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Solution

The fourth proportional to 549,911.20, 824,386.80 and 213,181.60 is: 319,586.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,911.20 : 824,386.80 = 213,181.60 : x
  2. Step 2: Convert to fraction form
    549,911.20/824,386.80 = 213,181.60/x
  3. Step 3: Cross multiply
    549,911.20x = 824,386.80 × 213,181.60
  4. Step 4: Simplify right side
    549,911.20x = 175,744,097,042.88
  5. Step 5: Solve for x
    x = 175,744,097,042.88/549,911.20
  6. Step 6: Final answer
    x = 319,586.32

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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.