Home / 1,005,142.32-1,507,479.84-294,979.68

Finding the Fourth Proportional to 1,005,142.32, 1,507,479.84 and 294,979.68

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Solution

The fourth proportional to 1,005,142.32, 1,507,479.84 and 294,979.68 is: 442,400.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,005,142.32 : 1,507,479.84 = 294,979.68 : x
  2. Step 2: Convert to fraction form
    1,005,142.32/1,507,479.84 = 294,979.68/x
  3. Step 3: Cross multiply
    1,005,142.32x = 1,507,479.84 × 294,979.68
  4. Step 4: Simplify right side
    1,005,142.32x = 444,675,920,809.65
  5. Step 5: Solve for x
    x = 444,675,920,809.65/1,005,142.32
  6. Step 6: Final answer
    x = 442,400.95

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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.