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Finding the Fourth Proportional to 545,619.86, 752,993.27 and 330,768.98

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Solution

The fourth proportional to 545,619.86, 752,993.27 and 330,768.98 is: 456,484.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,619.86 : 752,993.27 = 330,768.98 : x
  2. Step 2: Convert to fraction form
    545,619.86/752,993.27 = 330,768.98/x
  3. Step 3: Cross multiply
    545,619.86x = 752,993.27 × 330,768.98
  4. Step 4: Simplify right side
    545,619.86x = 249,066,815,864.77
  5. Step 5: Solve for x
    x = 249,066,815,864.77/545,619.86
  6. Step 6: Final answer
    x = 456,484.15

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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.