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Finding the Fourth Proportional to 626,544.84, 864,608.72 and 340,058.78

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Solution

The fourth proportional to 626,544.84, 864,608.72 and 340,058.78 is: 469,268.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,544.84 : 864,608.72 = 340,058.78 : x
  2. Step 2: Convert to fraction form
    626,544.84/864,608.72 = 340,058.78/x
  3. Step 3: Cross multiply
    626,544.84x = 864,608.72 × 340,058.78
  4. Step 4: Simplify right side
    626,544.84x = 294,017,780,477.22
  5. Step 5: Solve for x
    x = 294,017,780,477.22/626,544.84
  6. Step 6: Final answer
    x = 469,268.54

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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.