Home / 318,631.80-477,947.70-303,079.80

Finding the Fourth Proportional to 318,631.80, 477,947.70 and 303,079.80

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Solution

The fourth proportional to 318,631.80, 477,947.70 and 303,079.80 is: 454,619.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,631.80 : 477,947.70 = 303,079.80 : x
  2. Step 2: Convert to fraction form
    318,631.80/477,947.70 = 303,079.80/x
  3. Step 3: Cross multiply
    318,631.80x = 477,947.70 × 303,079.80
  4. Step 4: Simplify right side
    318,631.80x = 144,856,293,326.46
  5. Step 5: Solve for x
    x = 144,856,293,326.46/318,631.80
  6. Step 6: Final answer
    x = 454,619.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.