Home / 555,266-766,208.28-313,533.92

Finding the Fourth Proportional to 555,266, 766,208.28 and 313,533.92

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Solution

The fourth proportional to 555,266, 766,208.28 and 313,533.92 is: 432,643.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,266 : 766,208.28 = 313,533.92 : x
  2. Step 2: Convert to fraction form
    555,266/766,208.28 = 313,533.92/x
  3. Step 3: Cross multiply
    555,266x = 766,208.28 × 313,533.92
  4. Step 4: Simplify right side
    555,266x = 240,232,285,564.86
  5. Step 5: Solve for x
    x = 240,232,285,564.86/555,266
  6. Step 6: Final answer
    x = 432,643.61

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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.