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Finding the Fourth Proportional to 545,172.11, 752,320.76 and 303,448.47

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Solution

The fourth proportional to 545,172.11, 752,320.76 and 303,448.47 is: 418,749.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,172.11 : 752,320.76 = 303,448.47 : x
  2. Step 2: Convert to fraction form
    545,172.11/752,320.76 = 303,448.47/x
  3. Step 3: Cross multiply
    545,172.11x = 752,320.76 × 303,448.47
  4. Step 4: Simplify right side
    545,172.11x = 228,290,582,828.37
  5. Step 5: Solve for x
    x = 228,290,582,828.37/545,172.11
  6. Step 6: Final answer
    x = 418,749.56

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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.