Home / 816,652.89-1,224,975.15-209,438.42

Finding the Fourth Proportional to 816,652.89, 1,224,975.15 and 209,438.42

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Solution

The fourth proportional to 816,652.89, 1,224,975.15 and 209,438.42 is: 314,156.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,652.89 : 1,224,975.15 = 209,438.42 : x
  2. Step 2: Convert to fraction form
    816,652.89/1,224,975.15 = 209,438.42/x
  3. Step 3: Cross multiply
    816,652.89x = 1,224,975.15 × 209,438.42
  4. Step 4: Simplify right side
    816,652.89x = 256,556,853,830.39
  5. Step 5: Solve for x
    x = 256,556,853,830.39/816,652.89
  6. Step 6: Final answer
    x = 314,156.55

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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.