Home / 780,088.36-1,169,900.70-330,802.60

Finding the Fourth Proportional to 780,088.36, 1,169,900.70 and 330,802.60

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Solution

The fourth proportional to 780,088.36, 1,169,900.70 and 330,802.60 is: 496,105.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,088.36 : 1,169,900.70 = 330,802.60 : x
  2. Step 2: Convert to fraction form
    780,088.36/1,169,900.70 = 330,802.60/x
  3. Step 3: Cross multiply
    780,088.36x = 1,169,900.70 × 330,802.60
  4. Step 4: Simplify right side
    780,088.36x = 387,006,193,301.82
  5. Step 5: Solve for x
    x = 387,006,193,301.82/780,088.36
  6. Step 6: Final answer
    x = 496,105.59

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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.