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Finding the Fourth Proportional to 519,151.05, 716,581.67 and 304,337.61

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Solution

The fourth proportional to 519,151.05, 716,581.67 and 304,337.61 is: 420,075.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    519,151.05 : 716,581.67 = 304,337.61 : x
  2. Step 2: Convert to fraction form
    519,151.05/716,581.67 = 304,337.61/x
  3. Step 3: Cross multiply
    519,151.05x = 716,581.67 × 304,337.61
  4. Step 4: Simplify right side
    519,151.05x = 218,082,751,295.92
  5. Step 5: Solve for x
    x = 218,082,751,295.92/519,151.05
  6. Step 6: Final answer
    x = 420,075.72

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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.