Home / 1,299,412.40-1,949,450.75-500,479.43

Finding the Fourth Proportional to 1,299,412.40, 1,949,450.75 and 500,479.43

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Solution

The fourth proportional to 1,299,412.40, 1,949,450.75 and 500,479.43 is: 750,847.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,412.40 : 1,949,450.75 = 500,479.43 : x
  2. Step 2: Convert to fraction form
    1,299,412.40/1,949,450.75 = 500,479.43/x
  3. Step 3: Cross multiply
    1,299,412.40x = 1,949,450.75 × 500,479.43
  4. Step 4: Simplify right side
    1,299,412.40x = 975,660,000,173.07
  5. Step 5: Solve for x
    x = 975,660,000,173.07/1,299,412.40
  6. Step 6: Final answer
    x = 750,847.08

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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.