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Finding the Fourth Proportional to 570,661.59, 787,484.52 and 328,929.51

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Solution

The fourth proportional to 570,661.59, 787,484.52 and 328,929.51 is: 453,906.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    570,661.59 : 787,484.52 = 328,929.51 : x
  2. Step 2: Convert to fraction form
    570,661.59/787,484.52 = 328,929.51/x
  3. Step 3: Cross multiply
    570,661.59x = 787,484.52 × 328,929.51
  4. Step 4: Simplify right side
    570,661.59x = 259,026,897,296.19
  5. Step 5: Solve for x
    x = 259,026,897,296.19/570,661.59
  6. Step 6: Final answer
    x = 453,906.31

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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.