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Finding the Fourth Proportional to 557,640.30, 836,460.45 and 401,342.70

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Solution

The fourth proportional to 557,640.30, 836,460.45 and 401,342.70 is: 602,014.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,640.30 : 836,460.45 = 401,342.70 : x
  2. Step 2: Convert to fraction form
    557,640.30/836,460.45 = 401,342.70/x
  3. Step 3: Cross multiply
    557,640.30x = 836,460.45 × 401,342.70
  4. Step 4: Simplify right side
    557,640.30x = 335,707,295,446.22
  5. Step 5: Solve for x
    x = 335,707,295,446.22/557,640.30
  6. Step 6: Final answer
    x = 602,014.05

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1.5x scale

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.