Home / 1,242,007.20-1,863,010.80-389,150.10

Finding the Fourth Proportional to 1,242,007.20, 1,863,010.80 and 389,150.10

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Solution

The fourth proportional to 1,242,007.20, 1,863,010.80 and 389,150.10 is: 583,725.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,242,007.20 : 1,863,010.80 = 389,150.10 : x
  2. Step 2: Convert to fraction form
    1,242,007.20/1,863,010.80 = 389,150.10/x
  3. Step 3: Cross multiply
    1,242,007.20x = 1,863,010.80 × 389,150.10
  4. Step 4: Simplify right side
    1,242,007.20x = 724,990,839,121.08
  5. Step 5: Solve for x
    x = 724,990,839,121.08/1,242,007.20
  6. Step 6: Final answer
    x = 583,725.15

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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.