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Finding the Fourth Proportional to 626,200.63, 864,130.36 and 354,273.15

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Solution

The fourth proportional to 626,200.63, 864,130.36 and 354,273.15 is: 488,881.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,200.63 : 864,130.36 = 354,273.15 : x
  2. Step 2: Convert to fraction form
    626,200.63/864,130.36 = 354,273.15/x
  3. Step 3: Cross multiply
    626,200.63x = 864,130.36 × 354,273.15
  4. Step 4: Simplify right side
    626,200.63x = 306,138,184,647.83
  5. Step 5: Solve for x
    x = 306,138,184,647.83/626,200.63
  6. Step 6: Final answer
    x = 488,881.95

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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.