Home / 858,706.08-1,288,277.96-385,570.48

Finding the Fourth Proportional to 858,706.08, 1,288,277.96 and 385,570.48

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Solution

The fourth proportional to 858,706.08, 1,288,277.96 and 385,570.48 is: 578,453.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,706.08 : 1,288,277.96 = 385,570.48 : x
  2. Step 2: Convert to fraction form
    858,706.08/1,288,277.96 = 385,570.48/x
  3. Step 3: Cross multiply
    858,706.08x = 1,288,277.96 × 385,570.48
  4. Step 4: Simplify right side
    858,706.08x = 496,721,951,410.62
  5. Step 5: Solve for x
    x = 496,721,951,410.62/858,706.08
  6. Step 6: Final answer
    x = 578,453.98

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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.