Home / 767,415.36-1,150,421.76-268,507.20

Finding the Fourth Proportional to 767,415.36, 1,150,421.76 and 268,507.20

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Solution

The fourth proportional to 767,415.36, 1,150,421.76 and 268,507.20 is: 402,515.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    767,415.36 : 1,150,421.76 = 268,507.20 : x
  2. Step 2: Convert to fraction form
    767,415.36/1,150,421.76 = 268,507.20/x
  3. Step 3: Cross multiply
    767,415.36x = 1,150,421.76 × 268,507.20
  4. Step 4: Simplify right side
    767,415.36x = 308,896,525,596.67
  5. Step 5: Solve for x
    x = 308,896,525,596.67/767,415.36
  6. Step 6: Final answer
    x = 402,515.43

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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.