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Finding the Fourth Proportional to 874,876.72, 1,207,329.88 and 472,468.72

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Solution

The fourth proportional to 874,876.72, 1,207,329.88 and 472,468.72 is: 652,006.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,876.72 : 1,207,329.88 = 472,468.72 : x
  2. Step 2: Convert to fraction form
    874,876.72/1,207,329.88 = 472,468.72/x
  3. Step 3: Cross multiply
    874,876.72x = 1,207,329.88 × 472,468.72
  4. Step 4: Simplify right side
    874,876.72x = 570,425,603,021.35
  5. Step 5: Solve for x
    x = 570,425,603,021.35/874,876.72
  6. Step 6: Final answer
    x = 652,006.84

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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.