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Finding the Fourth Proportional to 497,750.40, 746,625.60 and 478,396.80

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Solution

The fourth proportional to 497,750.40, 746,625.60 and 478,396.80 is: 717,595.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,750.40 : 746,625.60 = 478,396.80 : x
  2. Step 2: Convert to fraction form
    497,750.40/746,625.60 = 478,396.80/x
  3. Step 3: Cross multiply
    497,750.40x = 746,625.60 × 478,396.80
  4. Step 4: Simplify right side
    497,750.40x = 357,183,297,838.08
  5. Step 5: Solve for x
    x = 357,183,297,838.08/497,750.40
  6. Step 6: Final answer
    x = 717,595.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.