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Finding the Fourth Proportional to 626,023.50, 863,912.43 and 357,751.50

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Solution

The fourth proportional to 626,023.50, 863,912.43 and 357,751.50 is: 493,697.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,023.50 : 863,912.43 = 357,751.50 : x
  2. Step 2: Convert to fraction form
    626,023.50/863,912.43 = 357,751.50/x
  3. Step 3: Cross multiply
    626,023.50x = 863,912.43 × 357,751.50
  4. Step 4: Simplify right side
    626,023.50x = 309,065,967,701.15
  5. Step 5: Solve for x
    x = 309,065,967,701.15/626,023.50
  6. Step 6: Final answer
    x = 493,697.07

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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.