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Finding the Fourth Proportional to 626,633.52, 864,748.31 and 340,153.22

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Solution

The fourth proportional to 626,633.52, 864,748.31 and 340,153.22 is: 469,408.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,633.52 : 864,748.31 = 340,153.22 : x
  2. Step 2: Convert to fraction form
    626,633.52/864,748.31 = 340,153.22/x
  3. Step 3: Cross multiply
    626,633.52x = 864,748.31 × 340,153.22
  4. Step 4: Simplify right side
    626,633.52x = 294,146,922,597.16
  5. Step 5: Solve for x
    x = 294,146,922,597.16/626,633.52
  6. Step 6: Final answer
    x = 469,408.22

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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.