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Finding the Fourth Proportional to 567,907.29, 783,726.84 and 309,788.58

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Solution

The fourth proportional to 567,907.29, 783,726.84 and 309,788.58 is: 427,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    567,907.29 : 783,726.84 = 309,788.58 : x
  2. Step 2: Convert to fraction form
    567,907.29/783,726.84 = 309,788.58/x
  3. Step 3: Cross multiply
    567,907.29x = 783,726.84 × 309,788.58
  4. Step 4: Simplify right side
    567,907.29x = 242,789,623,322.54
  5. Step 5: Solve for x
    x = 242,789,623,322.54/567,907.29
  6. Step 6: Final answer
    x = 427,516.30

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1.5x scale

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.