Home / 756,526.36-1,135,048.78-258,240.28

Finding the Fourth Proportional to 756,526.36, 1,135,048.78 and 258,240.28

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Solution

The fourth proportional to 756,526.36, 1,135,048.78 and 258,240.28 is: 387,448.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,526.36 : 1,135,048.78 = 258,240.28 : x
  2. Step 2: Convert to fraction form
    756,526.36/1,135,048.78 = 258,240.28/x
  3. Step 3: Cross multiply
    756,526.36x = 1,135,048.78 × 258,240.28
  4. Step 4: Simplify right side
    756,526.36x = 293,115,314,760.86
  5. Step 5: Solve for x
    x = 293,115,314,760.86/756,526.36
  6. Step 6: Final answer
    x = 387,448.91

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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.