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Finding the Fourth Proportional to 683,018.52, 942,478.62 and 381,225.24

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Solution

The fourth proportional to 683,018.52, 942,478.62 and 381,225.24 is: 526,042.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,018.52 : 942,478.62 = 381,225.24 : x
  2. Step 2: Convert to fraction form
    683,018.52/942,478.62 = 381,225.24/x
  3. Step 3: Cross multiply
    683,018.52x = 942,478.62 × 381,225.24
  4. Step 4: Simplify right side
    683,018.52x = 359,296,638,104.37
  5. Step 5: Solve for x
    x = 359,296,638,104.37/683,018.52
  6. Step 6: Final answer
    x = 526,042.31

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Double scale
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Similar ratio
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1.5x scale

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.