Home / 629,332.78-868,501.56-357,393.10

Finding the Fourth Proportional to 629,332.78, 868,501.56 and 357,393.10

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Solution

The fourth proportional to 629,332.78, 868,501.56 and 357,393.10 is: 493,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,332.78 : 868,501.56 = 357,393.10 : x
  2. Step 2: Convert to fraction form
    629,332.78/868,501.56 = 357,393.10/x
  3. Step 3: Cross multiply
    629,332.78x = 868,501.56 × 357,393.10
  4. Step 4: Simplify right side
    629,332.78x = 310,396,464,883.24
  5. Step 5: Solve for x
    x = 310,396,464,883.24/629,332.78
  6. Step 6: Final answer
    x = 493,215.16

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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.