Home / 545,041.80-752,152.14-303,320.25

Finding the Fourth Proportional to 545,041.80, 752,152.14 and 303,320.25

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Solution

The fourth proportional to 545,041.80, 752,152.14 and 303,320.25 is: 418,578.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,041.80 : 752,152.14 = 303,320.25 : x
  2. Step 2: Convert to fraction form
    545,041.80/752,152.14 = 303,320.25/x
  3. Step 3: Cross multiply
    545,041.80x = 752,152.14 × 303,320.25
  4. Step 4: Simplify right side
    545,041.80x = 228,142,975,142.84
  5. Step 5: Solve for x
    x = 228,142,975,142.84/545,041.80
  6. Step 6: Final answer
    x = 418,578.86

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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.