Home / 657,631.44-986,475.87-208,385.42

Finding the Fourth Proportional to 657,631.44, 986,475.87 and 208,385.42

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Solution

The fourth proportional to 657,631.44, 986,475.87 and 208,385.42 is: 312,587.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,631.44 : 986,475.87 = 208,385.42 : x
  2. Step 2: Convert to fraction form
    657,631.44/986,475.87 = 208,385.42/x
  3. Step 3: Cross multiply
    657,631.44x = 986,475.87 × 208,385.42
  4. Step 4: Simplify right side
    657,631.44x = 205,567,183,557.44
  5. Step 5: Solve for x
    x = 205,567,183,557.44/657,631.44
  6. Step 6: Final answer
    x = 312,587.22

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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.