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Finding the Fourth Proportional to 545,697.56, 752,962.70 and 303,974.12

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Solution

The fourth proportional to 545,697.56, 752,962.70 and 303,974.12 is: 419,428.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,697.56 : 752,962.70 = 303,974.12 : x
  2. Step 2: Convert to fraction form
    545,697.56/752,962.70 = 303,974.12/x
  3. Step 3: Cross multiply
    545,697.56x = 752,962.70 × 303,974.12
  4. Step 4: Simplify right side
    545,697.56x = 228,881,174,125.32
  5. Step 5: Solve for x
    x = 228,881,174,125.32/545,697.56
  6. Step 6: Final answer
    x = 419,428.62

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Double scale
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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.