Home / 1,379,521.31-2,068,678.60-695,987.51

Finding the Fourth Proportional to 1,379,521.31, 2,068,678.60 and 695,987.51

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Solution

The fourth proportional to 1,379,521.31, 2,068,678.60 and 695,987.51 is: 1,043,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,521.31 : 2,068,678.60 = 695,987.51 : x
  2. Step 2: Convert to fraction form
    1,379,521.31/2,068,678.60 = 695,987.51/x
  3. Step 3: Cross multiply
    1,379,521.31x = 2,068,678.60 × 695,987.51
  4. Step 4: Simplify right side
    1,379,521.31x = 1,439,774,467,804.29
  5. Step 5: Solve for x
    x = 1,439,774,467,804.29/1,379,521.31
  6. Step 6: Final answer
    x = 1,043,676.86

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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.