Home / 549,774.20-824,401.38-212,972.60

Finding the Fourth Proportional to 549,774.20, 824,401.38 and 212,972.60

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Solution

The fourth proportional to 549,774.20, 824,401.38 and 212,972.60 is: 319,358.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,774.20 : 824,401.38 = 212,972.60 : x
  2. Step 2: Convert to fraction form
    549,774.20/824,401.38 = 212,972.60/x
  3. Step 3: Cross multiply
    549,774.20x = 824,401.38 × 212,972.60
  4. Step 4: Simplify right side
    549,774.20x = 175,574,905,342.19
  5. Step 5: Solve for x
    x = 175,574,905,342.19/549,774.20
  6. Step 6: Final answer
    x = 319,358.21

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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.