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Finding the Fourth Proportional to 530,278.75, 731,801.14 and 300,845.70

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Solution

The fourth proportional to 530,278.75, 731,801.14 and 300,845.70 is: 415,176.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,278.75 : 731,801.14 = 300,845.70 : x
  2. Step 2: Convert to fraction form
    530,278.75/731,801.14 = 300,845.70/x
  3. Step 3: Cross multiply
    530,278.75x = 731,801.14 × 300,845.70
  4. Step 4: Simplify right side
    530,278.75x = 220,159,226,224.10
  5. Step 5: Solve for x
    x = 220,159,226,224.10/530,278.75
  6. Step 6: Final answer
    x = 415,176.41

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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.