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Finding the Fourth Proportional to 610,796.85, 842,804.55 and 349,148.40

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Solution

The fourth proportional to 610,796.85, 842,804.55 and 349,148.40 is: 481,770.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,796.85 : 842,804.55 = 349,148.40 : x
  2. Step 2: Convert to fraction form
    610,796.85/842,804.55 = 349,148.40/x
  3. Step 3: Cross multiply
    610,796.85x = 842,804.55 × 349,148.40
  4. Step 4: Simplify right side
    610,796.85x = 294,263,860,145.22
  5. Step 5: Solve for x
    x = 294,263,860,145.22/610,796.85
  6. Step 6: Final answer
    x = 481,770.43

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1.5x scale

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.