Home / 1,020,057.87-1,530,087.86-380,351.83

Finding the Fourth Proportional to 1,020,057.87, 1,530,087.86 and 380,351.83

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Solution

The fourth proportional to 1,020,057.87, 1,530,087.86 and 380,351.83 is: 570,528.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,057.87 : 1,530,087.86 = 380,351.83 : x
  2. Step 2: Convert to fraction form
    1,020,057.87/1,530,087.86 = 380,351.83/x
  3. Step 3: Cross multiply
    1,020,057.87x = 1,530,087.86 × 380,351.83
  4. Step 4: Simplify right side
    1,020,057.87x = 581,971,717,611.78
  5. Step 5: Solve for x
    x = 581,971,717,611.78/1,020,057.87
  6. Step 6: Final answer
    x = 570,528.14

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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.