Home / 1,007,249.20-1,509,707.40-407,816.80

Finding the Fourth Proportional to 1,007,249.20, 1,509,707.40 and 407,816.80

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Solution

The fourth proportional to 1,007,249.20, 1,509,707.40 and 407,816.80 is: 611,252.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,007,249.20 : 1,509,707.40 = 407,816.80 : x
  2. Step 2: Convert to fraction form
    1,007,249.20/1,509,707.40 = 407,816.80/x
  3. Step 3: Cross multiply
    1,007,249.20x = 1,509,707.40 × 407,816.80
  4. Step 4: Simplify right side
    1,007,249.20x = 615,684,040,804.32
  5. Step 5: Solve for x
    x = 615,684,040,804.32/1,007,249.20
  6. Step 6: Final answer
    x = 611,252.95

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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.