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Finding the Fourth Proportional to 520,668.32, 780,490.04 and 304,252.39

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Solution

The fourth proportional to 520,668.32, 780,490.04 and 304,252.39 is: 456,079.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,668.32 : 780,490.04 = 304,252.39 : x
  2. Step 2: Convert to fraction form
    520,668.32/780,490.04 = 304,252.39/x
  3. Step 3: Cross multiply
    520,668.32x = 780,490.04 × 304,252.39
  4. Step 4: Simplify right side
    520,668.32x = 237,465,960,041.20
  5. Step 5: Solve for x
    x = 237,465,960,041.20/520,668.32
  6. Step 6: Final answer
    x = 456,079.14

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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.