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Finding the Fourth Proportional to 555,642.99, 766,785.66 and 313,925.47

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Solution

The fourth proportional to 555,642.99, 766,785.66 and 313,925.47 is: 433,216.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,642.99 : 766,785.66 = 313,925.47 : x
  2. Step 2: Convert to fraction form
    555,642.99/766,785.66 = 313,925.47/x
  3. Step 3: Cross multiply
    555,642.99x = 766,785.66 × 313,925.47
  4. Step 4: Simplify right side
    555,642.99x = 240,713,548,704.76
  5. Step 5: Solve for x
    x = 240,713,548,704.76/555,642.99
  6. Step 6: Final answer
    x = 433,216.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.