Home / 1,284,479.32-1,772,559.28-711,507.48

Finding the Fourth Proportional to 1,284,479.32, 1,772,559.28 and 711,507.48

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Solution

The fourth proportional to 1,284,479.32, 1,772,559.28 and 711,507.48 is: 981,868.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,479.32 : 1,772,559.28 = 711,507.48 : x
  2. Step 2: Convert to fraction form
    1,284,479.32/1,772,559.28 = 711,507.48/x
  3. Step 3: Cross multiply
    1,284,479.32x = 1,772,559.28 × 711,507.48
  4. Step 4: Simplify right side
    1,284,479.32x = 1,261,189,186,463.41
  5. Step 5: Solve for x
    x = 1,261,189,186,463.41/1,284,479.32
  6. Step 6: Final answer
    x = 981,868.04

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.