Home / 713,985.03-1,071,297.39-389,879.73

Finding the Fourth Proportional to 713,985.03, 1,071,297.39 and 389,879.73

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Solution

The fourth proportional to 713,985.03, 1,071,297.39 and 389,879.73 is: 584,994.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,985.03 : 1,071,297.39 = 389,879.73 : x
  2. Step 2: Convert to fraction form
    713,985.03/1,071,297.39 = 389,879.73/x
  3. Step 3: Cross multiply
    713,985.03x = 1,071,297.39 × 389,879.73
  4. Step 4: Simplify right side
    713,985.03x = 417,677,137,162.91
  5. Step 5: Solve for x
    x = 417,677,137,162.91/713,985.03
  6. Step 6: Final answer
    x = 584,994.25

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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.