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Finding the Fourth Proportional to 1,293,300.56, 1,784,755.30 and 749,751.48

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Solution

The fourth proportional to 1,293,300.56, 1,784,755.30 and 749,751.48 is: 1,034,657.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,293,300.56 : 1,784,755.30 = 749,751.48 : x
  2. Step 2: Convert to fraction form
    1,293,300.56/1,784,755.30 = 749,751.48/x
  3. Step 3: Cross multiply
    1,293,300.56x = 1,784,755.30 × 749,751.48
  4. Step 4: Simplify right side
    1,293,300.56x = 1,338,122,927,612.84
  5. Step 5: Solve for x
    x = 1,338,122,927,612.84/1,293,300.56
  6. Step 6: Final answer
    x = 1,034,657.35

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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.