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Finding the Fourth Proportional to 570,658.59, 787,480.38 and 328,926.51

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Solution

The fourth proportional to 570,658.59, 787,480.38 and 328,926.51 is: 453,902.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,658.59 : 787,480.38 = 328,926.51 : x
  2. Step 2: Convert to fraction form
    570,658.59/787,480.38 = 328,926.51/x
  3. Step 3: Cross multiply
    570,658.59x = 787,480.38 × 328,926.51
  4. Step 4: Simplify right side
    570,658.59x = 259,023,173,086.87
  5. Step 5: Solve for x
    x = 259,023,173,086.87/570,658.59
  6. Step 6: Final answer
    x = 453,902.17

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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.