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Finding the Fourth Proportional to 617,710.51, 852,429.80 and 342,062.89

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Solution

The fourth proportional to 617,710.51, 852,429.80 and 342,062.89 is: 472,040.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    617,710.51 : 852,429.80 = 342,062.89 : x
  2. Step 2: Convert to fraction form
    617,710.51/852,429.80 = 342,062.89/x
  3. Step 3: Cross multiply
    617,710.51x = 852,429.80 × 342,062.89
  4. Step 4: Simplify right side
    617,710.51x = 291,584,600,910.12
  5. Step 5: Solve for x
    x = 291,584,600,910.12/617,710.51
  6. Step 6: Final answer
    x = 472,040.86

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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.