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Finding the Fourth Proportional to 626,026.50, 863,916.57 and 357,754.50

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Solution

The fourth proportional to 626,026.50, 863,916.57 and 357,754.50 is: 493,701.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,026.50 : 863,916.57 = 357,754.50 : x
  2. Step 2: Convert to fraction form
    626,026.50/863,916.57 = 357,754.50/x
  3. Step 3: Cross multiply
    626,026.50x = 863,916.57 × 357,754.50
  4. Step 4: Simplify right side
    626,026.50x = 309,070,040,542.07
  5. Step 5: Solve for x
    x = 309,070,040,542.07/626,026.50
  6. Step 6: Final answer
    x = 493,701.21

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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.