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Finding the Fourth Proportional to 530,152.64, 731,587.68 and 303,819.20

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Solution

The fourth proportional to 530,152.64, 731,587.68 and 303,819.20 is: 419,257.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,152.64 : 731,587.68 = 303,819.20 : x
  2. Step 2: Convert to fraction form
    530,152.64/731,587.68 = 303,819.20/x
  3. Step 3: Cross multiply
    530,152.64x = 731,587.68 × 303,819.20
  4. Step 4: Simplify right side
    530,152.64x = 222,270,383,667.46
  5. Step 5: Solve for x
    x = 222,270,383,667.46/530,152.64
  6. Step 6: Final answer
    x = 419,257.34

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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.