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Finding the Fourth Proportional to 581,724.80, 802,922.72 and 355,559.84

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Solution

The fourth proportional to 581,724.80, 802,922.72 and 355,559.84 is: 490,759.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,724.80 : 802,922.72 = 355,559.84 : x
  2. Step 2: Convert to fraction form
    581,724.80/802,922.72 = 355,559.84/x
  3. Step 3: Cross multiply
    581,724.80x = 802,922.72 × 355,559.84
  4. Step 4: Simplify right side
    581,724.80x = 285,487,073,855.57
  5. Step 5: Solve for x
    x = 285,487,073,855.57/581,724.80
  6. Step 6: Final answer
    x = 490,759.68

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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.