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Finding the Fourth Proportional to 622,842, 859,522.92 and 354,570

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Solution

The fourth proportional to 622,842, 859,522.92 and 354,570 is: 489,307.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,842 : 859,522.92 = 354,570 : x
  2. Step 2: Convert to fraction form
    622,842/859,522.92 = 354,570/x
  3. Step 3: Cross multiply
    622,842x = 859,522.92 × 354,570
  4. Step 4: Simplify right side
    622,842x = 304,761,041,744.40
  5. Step 5: Solve for x
    x = 304,761,041,744.40/622,842
  6. Step 6: Final answer
    x = 489,307.15

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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.