Home / 858,861.20-1,185,205.68-476,878.16

Finding the Fourth Proportional to 858,861.20, 1,185,205.68 and 476,878.16

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Solution

The fourth proportional to 858,861.20, 1,185,205.68 and 476,878.16 is: 658,079.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,861.20 : 1,185,205.68 = 476,878.16 : x
  2. Step 2: Convert to fraction form
    858,861.20/1,185,205.68 = 476,878.16/x
  3. Step 3: Cross multiply
    858,861.20x = 1,185,205.68 × 476,878.16
  4. Step 4: Simplify right side
    858,861.20x = 565,198,703,899.95
  5. Step 5: Solve for x
    x = 565,198,703,899.95/858,861.20
  6. Step 6: Final answer
    x = 658,079.21

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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.