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Finding the Fourth Proportional to 520,297.20, 718,005.78 and 365,466.06

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Solution

The fourth proportional to 520,297.20, 718,005.78 and 365,466.06 is: 504,340.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,297.20 : 718,005.78 = 365,466.06 : x
  2. Step 2: Convert to fraction form
    520,297.20/718,005.78 = 365,466.06/x
  3. Step 3: Cross multiply
    520,297.20x = 718,005.78 × 365,466.06
  4. Step 4: Simplify right side
    520,297.20x = 262,406,743,473.83
  5. Step 5: Solve for x
    x = 262,406,743,473.83/520,297.20
  6. Step 6: Final answer
    x = 504,340.10

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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.