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Finding the Fourth Proportional to 490,468.77, 676,599.48 and 425,850.21

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Solution

The fourth proportional to 490,468.77, 676,599.48 and 425,850.21 is: 587,458.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,468.77 : 676,599.48 = 425,850.21 : x
  2. Step 2: Convert to fraction form
    490,468.77/676,599.48 = 425,850.21/x
  3. Step 3: Cross multiply
    490,468.77x = 676,599.48 × 425,850.21
  4. Step 4: Simplify right side
    490,468.77x = 288,130,030,643.89
  5. Step 5: Solve for x
    x = 288,130,030,643.89/490,468.77
  6. Step 6: Final answer
    x = 587,458.46

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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.