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Finding the Fourth Proportional to 530,278.63, 731,800.97 and 300,845.57

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Solution

The fourth proportional to 530,278.63, 731,800.97 and 300,845.57 is: 415,176.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,278.63 : 731,800.97 = 300,845.57 : x
  2. Step 2: Convert to fraction form
    530,278.63/731,800.97 = 300,845.57/x
  3. Step 3: Cross multiply
    530,278.63x = 731,800.97 × 300,845.57
  4. Step 4: Simplify right side
    530,278.63x = 220,159,082,527.82
  5. Step 5: Solve for x
    x = 220,159,082,527.82/530,278.63
  6. Step 6: Final answer
    x = 415,176.23

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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.