Home / 931,692.62-1,285,723.47-518,226.60

Finding the Fourth Proportional to 931,692.62, 1,285,723.47 and 518,226.60

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Solution

The fourth proportional to 931,692.62, 1,285,723.47 and 518,226.60 is: 715,145.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,692.62 : 1,285,723.47 = 518,226.60 : x
  2. Step 2: Convert to fraction form
    931,692.62/1,285,723.47 = 518,226.60/x
  3. Step 3: Cross multiply
    931,692.62x = 1,285,723.47 × 518,226.60
  4. Step 4: Simplify right side
    931,692.62x = 666,296,102,398.30
  5. Step 5: Solve for x
    x = 666,296,102,398.30/931,692.62
  6. Step 6: Final answer
    x = 715,145.84

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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.