Home / 921,671.49-1,382,006.94-415,640.39

Finding the Fourth Proportional to 921,671.49, 1,382,006.94 and 415,640.39

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Solution

The fourth proportional to 921,671.49, 1,382,006.94 and 415,640.39 is: 623,234.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    921,671.49 : 1,382,006.94 = 415,640.39 : x
  2. Step 2: Convert to fraction form
    921,671.49/1,382,006.94 = 415,640.39/x
  3. Step 3: Cross multiply
    921,671.49x = 1,382,006.94 × 415,640.39
  4. Step 4: Simplify right side
    921,671.49x = 574,417,903,524.31
  5. Step 5: Solve for x
    x = 574,417,903,524.31/921,671.49
  6. Step 6: Final answer
    x = 623,234.97

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1.5x scale

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.