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Finding the Fourth Proportional to 545,274.08, 752,503.07 and 303,572.01

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Solution

The fourth proportional to 545,274.08, 752,503.07 and 303,572.01 is: 418,943.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,274.08 : 752,503.07 = 303,572.01 : x
  2. Step 2: Convert to fraction form
    545,274.08/752,503.07 = 303,572.01/x
  3. Step 3: Cross multiply
    545,274.08x = 752,503.07 × 303,572.01
  4. Step 4: Simplify right side
    545,274.08x = 228,438,867,973.21
  5. Step 5: Solve for x
    x = 228,438,867,973.21/545,274.08
  6. Step 6: Final answer
    x = 418,943.20

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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.