Home / 520,528.23-718,330.88-302,789.15

Finding the Fourth Proportional to 520,528.23, 718,330.88 and 302,789.15

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Solution

The fourth proportional to 520,528.23, 718,330.88 and 302,789.15 is: 417,850.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,528.23 : 718,330.88 = 302,789.15 : x
  2. Step 2: Convert to fraction form
    520,528.23/718,330.88 = 302,789.15/x
  3. Step 3: Cross multiply
    520,528.23x = 718,330.88 × 302,789.15
  4. Step 4: Simplify right side
    520,528.23x = 217,502,793,739.27
  5. Step 5: Solve for x
    x = 217,502,793,739.27/520,528.23
  6. Step 6: Final answer
    x = 417,850.14

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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.