Home / 555,212.64-766,176.48-313,491.36

Finding the Fourth Proportional to 555,212.64, 766,176.48 and 313,491.36

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Solution

The fourth proportional to 555,212.64, 766,176.48 and 313,491.36 is: 432,608.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,212.64 : 766,176.48 = 313,491.36 : x
  2. Step 2: Convert to fraction form
    555,212.64/766,176.48 = 313,491.36/x
  3. Step 3: Cross multiply
    555,212.64x = 766,176.48 × 313,491.36
  4. Step 4: Simplify right side
    555,212.64x = 240,189,706,715.21
  5. Step 5: Solve for x
    x = 240,189,706,715.21/555,212.64
  6. Step 6: Final answer
    x = 432,608.50

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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.