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Finding the Fourth Proportional to 520,260.40, 718,050.71 and 302,536.45

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Solution

The fourth proportional to 520,260.40, 718,050.71 and 302,536.45 is: 417,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,260.40 : 718,050.71 = 302,536.45 : x
  2. Step 2: Convert to fraction form
    520,260.40/718,050.71 = 302,536.45/x
  3. Step 3: Cross multiply
    520,260.40x = 718,050.71 × 302,536.45
  4. Step 4: Simplify right side
    520,260.40x = 217,236,507,620.44
  5. Step 5: Solve for x
    x = 217,236,507,620.44/520,260.40
  6. Step 6: Final answer
    x = 417,553.42

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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.