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Finding the Fourth Proportional to 657,662.04, 986,570.82 and 208,403.64

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Solution

The fourth proportional to 657,662.04, 986,570.82 and 208,403.64 is: 312,630.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,662.04 : 986,570.82 = 208,403.64 : x
  2. Step 2: Convert to fraction form
    657,662.04/986,570.82 = 208,403.64/x
  3. Step 3: Cross multiply
    657,662.04x = 986,570.82 × 208,403.64
  4. Step 4: Simplify right side
    657,662.04x = 205,604,950,005.79
  5. Step 5: Solve for x
    x = 205,604,950,005.79/657,662.04
  6. Step 6: Final answer
    x = 312,630.10

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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.