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Finding the Fourth Proportional to 626,560.84, 864,630.80 and 340,074.77

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Solution

The fourth proportional to 626,560.84, 864,630.80 and 340,074.77 is: 469,290.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,560.84 : 864,630.80 = 340,074.77 : x
  2. Step 2: Convert to fraction form
    626,560.84/864,630.80 = 340,074.77/x
  3. Step 3: Cross multiply
    626,560.84x = 864,630.80 × 340,074.77
  4. Step 4: Simplify right side
    626,560.84x = 294,039,118,744.54
  5. Step 5: Solve for x
    x = 294,039,118,744.54/626,560.84
  6. Step 6: Final answer
    x = 469,290.61

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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.