Home / 418,847.46-577,692.73-290,001.57

Finding the Fourth Proportional to 418,847.46, 577,692.73 and 290,001.57

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Solution

The fourth proportional to 418,847.46, 577,692.73 and 290,001.57 is: 399,982.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,847.46 : 577,692.73 = 290,001.57 : x
  2. Step 2: Convert to fraction form
    418,847.46/577,692.73 = 290,001.57/x
  3. Step 3: Cross multiply
    418,847.46x = 577,692.73 × 290,001.57
  4. Step 4: Simplify right side
    418,847.46x = 167,531,797,952.58
  5. Step 5: Solve for x
    x = 167,531,797,952.58/418,847.46
  6. Step 6: Final answer
    x = 399,982.84

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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.