Home / 763,988.75-1,145,270.86-258,196.06

Finding the Fourth Proportional to 763,988.75, 1,145,270.86 and 258,196.06

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Solution

The fourth proportional to 763,988.75, 1,145,270.86 and 258,196.06 is: 387,053.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,988.75 : 1,145,270.86 = 258,196.06 : x
  2. Step 2: Convert to fraction form
    763,988.75/1,145,270.86 = 258,196.06/x
  3. Step 3: Cross multiply
    763,988.75x = 1,145,270.86 × 258,196.06
  4. Step 4: Simplify right side
    763,988.75x = 295,704,420,176.14
  5. Step 5: Solve for x
    x = 295,704,420,176.14/763,988.75
  6. Step 6: Final answer
    x = 387,053.37

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1.5x scale

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.