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Finding the Fourth Proportional to 522,123.60, 782,310.60 and 446,890.80

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Solution

The fourth proportional to 522,123.60, 782,310.60 and 446,890.80 is: 669,587.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,123.60 : 782,310.60 = 446,890.80 : x
  2. Step 2: Convert to fraction form
    522,123.60/782,310.60 = 446,890.80/x
  3. Step 3: Cross multiply
    522,123.60x = 782,310.60 × 446,890.80
  4. Step 4: Simplify right side
    522,123.60x = 349,607,409,882.48
  5. Step 5: Solve for x
    x = 349,607,409,882.48/522,123.60
  6. Step 6: Final answer
    x = 669,587.45

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1.5x scale

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.