Home / 993,772.82-1,490,345.42-319,703.91

Finding the Fourth Proportional to 993,772.82, 1,490,345.42 and 319,703.91

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Solution

The fourth proportional to 993,772.82, 1,490,345.42 and 319,703.91 is: 479,454.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,772.82 : 1,490,345.42 = 319,703.91 : x
  2. Step 2: Convert to fraction form
    993,772.82/1,490,345.42 = 319,703.91/x
  3. Step 3: Cross multiply
    993,772.82x = 1,490,345.42 × 319,703.91
  4. Step 4: Simplify right side
    993,772.82x = 476,469,256,426.07
  5. Step 5: Solve for x
    x = 476,469,256,426.07/993,772.82
  6. Step 6: Final answer
    x = 479,454.91

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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.