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Finding the Fourth Proportional to 504,622.96, 696,347.80 and 278,270.32

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Solution

The fourth proportional to 504,622.96, 696,347.80 and 278,270.32 is: 383,995.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,622.96 : 696,347.80 = 278,270.32 : x
  2. Step 2: Convert to fraction form
    504,622.96/696,347.80 = 278,270.32/x
  3. Step 3: Cross multiply
    504,622.96x = 696,347.80 × 278,270.32
  4. Step 4: Simplify right side
    504,622.96x = 193,772,925,137.30
  5. Step 5: Solve for x
    x = 193,772,925,137.30/504,622.96
  6. Step 6: Final answer
    x = 383,995.46

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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.