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Finding the Fourth Proportional to 545,412.08, 752,666.78 and 303,697.56

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Solution

The fourth proportional to 545,412.08, 752,666.78 and 303,697.56 is: 419,101.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,412.08 : 752,666.78 = 303,697.56 : x
  2. Step 2: Convert to fraction form
    545,412.08/752,666.78 = 303,697.56/x
  3. Step 3: Cross multiply
    545,412.08x = 752,666.78 × 303,697.56
  4. Step 4: Simplify right side
    545,412.08x = 228,583,064,579.06
  5. Step 5: Solve for x
    x = 228,583,064,579.06/545,412.08
  6. Step 6: Final answer
    x = 419,101.58

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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.