Home / 1,237,824.32-1,853,585.40-815,820.80

Finding the Fourth Proportional to 1,237,824.32, 1,853,585.40 and 815,820.80

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Solution

The fourth proportional to 1,237,824.32, 1,853,585.40 and 815,820.80 is: 1,221,654.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,237,824.32 : 1,853,585.40 = 815,820.80 : x
  2. Step 2: Convert to fraction form
    1,237,824.32/1,853,585.40 = 815,820.80/x
  3. Step 3: Cross multiply
    1,237,824.32x = 1,853,585.40 × 815,820.80
  4. Step 4: Simplify right side
    1,237,824.32x = 1,512,193,523,896.32
  5. Step 5: Solve for x
    x = 1,512,193,523,896.32/1,237,824.32
  6. Step 6: Final answer
    x = 1,221,654.40

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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.