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Finding the Fourth Proportional to 424,653.36, 633,577.98 and 338,864.64

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Solution

The fourth proportional to 424,653.36, 633,577.98 and 338,864.64 is: 505,582.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,653.36 : 633,577.98 = 338,864.64 : x
  2. Step 2: Convert to fraction form
    424,653.36/633,577.98 = 338,864.64/x
  3. Step 3: Cross multiply
    424,653.36x = 633,577.98 × 338,864.64
  4. Step 4: Simplify right side
    424,653.36x = 214,697,174,104.63
  5. Step 5: Solve for x
    x = 214,697,174,104.63/424,653.36
  6. Step 6: Final answer
    x = 505,582.19

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.