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Finding the Fourth Proportional to 564,902.69, 779,603.87 and 310,256.51

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Solution

The fourth proportional to 564,902.69, 779,603.87 and 310,256.51 is: 428,174.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    564,902.69 : 779,603.87 = 310,256.51 : x
  2. Step 2: Convert to fraction form
    564,902.69/779,603.87 = 310,256.51/x
  3. Step 3: Cross multiply
    564,902.69x = 779,603.87 × 310,256.51
  4. Step 4: Simplify right side
    564,902.69x = 241,877,172,766.32
  5. Step 5: Solve for x
    x = 241,877,172,766.32/564,902.69
  6. Step 6: Final answer
    x = 428,174.94

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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.