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Finding the Fourth Proportional to 920,754.86, 1,270,705.54 and 558,194

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Solution

The fourth proportional to 920,754.86, 1,270,705.54 and 558,194 is: 770,346.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    920,754.86 : 1,270,705.54 = 558,194 : x
  2. Step 2: Convert to fraction form
    920,754.86/1,270,705.54 = 558,194/x
  3. Step 3: Cross multiply
    920,754.86x = 1,270,705.54 × 558,194
  4. Step 4: Simplify right side
    920,754.86x = 709,300,208,194.76
  5. Step 5: Solve for x
    x = 709,300,208,194.76/920,754.86
  6. Step 6: Final answer
    x = 770,346.42

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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.