Home / 989,421.32-1,365,401.88-559,692.44

Finding the Fourth Proportional to 989,421.32, 1,365,401.88 and 559,692.44

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Solution

The fourth proportional to 989,421.32, 1,365,401.88 and 559,692.44 is: 772,375.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,421.32 : 1,365,401.88 = 559,692.44 : x
  2. Step 2: Convert to fraction form
    989,421.32/1,365,401.88 = 559,692.44/x
  3. Step 3: Cross multiply
    989,421.32x = 1,365,401.88 × 559,692.44
  4. Step 4: Simplify right side
    989,421.32x = 764,205,109,797.79
  5. Step 5: Solve for x
    x = 764,205,109,797.79/989,421.32
  6. Step 6: Final answer
    x = 772,375.83

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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.