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Finding the Fourth Proportional to 520,048.60, 779,198.10 and 444,815.80

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Solution

The fourth proportional to 520,048.60, 779,198.10 and 444,815.80 is: 666,475.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,048.60 : 779,198.10 = 444,815.80 : x
  2. Step 2: Convert to fraction form
    520,048.60/779,198.10 = 444,815.80/x
  3. Step 3: Cross multiply
    520,048.60x = 779,198.10 × 444,815.80
  4. Step 4: Simplify right side
    520,048.60x = 346,599,626,209.98
  5. Step 5: Solve for x
    x = 346,599,626,209.98/520,048.60
  6. Step 6: Final answer
    x = 666,475.45

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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.