Home / 726,479.51-1,089,708.32-326,838.06

Finding the Fourth Proportional to 726,479.51, 1,089,708.32 and 326,838.06

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Solution

The fourth proportional to 726,479.51, 1,089,708.32 and 326,838.06 is: 490,252.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,479.51 : 1,089,708.32 = 326,838.06 : x
  2. Step 2: Convert to fraction form
    726,479.51/1,089,708.32 = 326,838.06/x
  3. Step 3: Cross multiply
    726,479.51x = 1,089,708.32 × 326,838.06
  4. Step 4: Simplify right side
    726,479.51x = 356,158,154,091.75
  5. Step 5: Solve for x
    x = 356,158,154,091.75/726,479.51
  6. Step 6: Final answer
    x = 490,252.17

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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.