Home / 1,431,388.80-1,975,294.38-786,795.18

Finding the Fourth Proportional to 1,431,388.80, 1,975,294.38 and 786,795.18

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Solution

The fourth proportional to 1,431,388.80, 1,975,294.38 and 786,795.18 is: 1,085,765.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,431,388.80 : 1,975,294.38 = 786,795.18 : x
  2. Step 2: Convert to fraction form
    1,431,388.80/1,975,294.38 = 786,795.18/x
  3. Step 3: Cross multiply
    1,431,388.80x = 1,975,294.38 × 786,795.18
  4. Step 4: Simplify right side
    1,431,388.80x = 1,554,152,097,265.09
  5. Step 5: Solve for x
    x = 1,554,152,097,265.09/1,431,388.80
  6. Step 6: Final answer
    x = 1,085,765.17

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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.