Home / 520,531.97-718,336.04-302,792.90

Finding the Fourth Proportional to 520,531.97, 718,336.04 and 302,792.90

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Solution

The fourth proportional to 520,531.97, 718,336.04 and 302,792.90 is: 417,855.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,531.97 : 718,336.04 = 302,792.90 : x
  2. Step 2: Convert to fraction form
    520,531.97/718,336.04 = 302,792.90/x
  3. Step 3: Cross multiply
    520,531.97x = 718,336.04 × 302,792.90
  4. Step 4: Simplify right side
    520,531.97x = 217,507,047,620.47
  5. Step 5: Solve for x
    x = 217,507,047,620.47/520,531.97
  6. Step 6: Final answer
    x = 417,855.31

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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.