Home / 815,835.72-1,125,787.30-471,693.74

Finding the Fourth Proportional to 815,835.72, 1,125,787.30 and 471,693.74

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Solution

The fourth proportional to 815,835.72, 1,125,787.30 and 471,693.74 is: 650,899.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,835.72 : 1,125,787.30 = 471,693.74 : x
  2. Step 2: Convert to fraction form
    815,835.72/1,125,787.30 = 471,693.74/x
  3. Step 3: Cross multiply
    815,835.72x = 1,125,787.30 × 471,693.74
  4. Step 4: Simplify right side
    815,835.72x = 531,026,821,981.50
  5. Step 5: Solve for x
    x = 531,026,821,981.50/815,835.72
  6. Step 6: Final answer
    x = 650,899.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.