Home / 549,646.20-823,989.30-212,916.60

Finding the Fourth Proportional to 549,646.20, 823,989.30 and 212,916.60

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Solution

The fourth proportional to 549,646.20, 823,989.30 and 212,916.60 is: 319,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,646.20 : 823,989.30 = 212,916.60 : x
  2. Step 2: Convert to fraction form
    549,646.20/823,989.30 = 212,916.60/x
  3. Step 3: Cross multiply
    549,646.20x = 823,989.30 × 212,916.60
  4. Step 4: Simplify right side
    549,646.20x = 175,441,000,192.38
  5. Step 5: Solve for x
    x = 175,441,000,192.38/549,646.20
  6. Step 6: Final answer
    x = 319,188.96

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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.