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Finding the Fourth Proportional to 622,478.96, 859,418.22 and 508,031

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Solution

The fourth proportional to 622,478.96, 859,418.22 and 508,031 is: 701,407.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,478.96 : 859,418.22 = 508,031 : x
  2. Step 2: Convert to fraction form
    622,478.96/859,418.22 = 508,031/x
  3. Step 3: Cross multiply
    622,478.96x = 859,418.22 × 508,031
  4. Step 4: Simplify right side
    622,478.96x = 436,611,097,724.82
  5. Step 5: Solve for x
    x = 436,611,097,724.82/622,478.96
  6. Step 6: Final answer
    x = 701,407.00

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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.