Home / 545,120.81-752,259.13-303,403.44

Finding the Fourth Proportional to 545,120.81, 752,259.13 and 303,403.44

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Solution

The fourth proportional to 545,120.81, 752,259.13 and 303,403.44 is: 418,692.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,120.81 : 752,259.13 = 303,403.44 : x
  2. Step 2: Convert to fraction form
    545,120.81/752,259.13 = 303,403.44/x
  3. Step 3: Cross multiply
    545,120.81x = 752,259.13 × 303,403.44
  4. Step 4: Simplify right side
    545,120.81x = 228,238,011,582.52
  5. Step 5: Solve for x
    x = 228,238,011,582.52/545,120.81
  6. Step 6: Final answer
    x = 418,692.53

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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.