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Finding the Fourth Proportional to 555,246.67, 766,256.11 and 313,565.57

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Solution

The fourth proportional to 555,246.67, 766,256.11 and 313,565.57 is: 432,729.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,246.67 : 766,256.11 = 313,565.57 : x
  2. Step 2: Convert to fraction form
    555,246.67/766,256.11 = 313,565.57/x
  3. Step 3: Cross multiply
    555,246.67x = 766,256.11 × 313,565.57
  4. Step 4: Simplify right side
    555,246.67x = 240,271,533,283.59
  5. Step 5: Solve for x
    x = 240,271,533,283.59/555,246.67
  6. Step 6: Final answer
    x = 432,729.36

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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.