Home / 969,957.51-1,338,305.30-638,779.26

Finding the Fourth Proportional to 969,957.51, 1,338,305.30 and 638,779.26

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Solution

The fourth proportional to 969,957.51, 1,338,305.30 and 638,779.26 is: 881,359.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,957.51 : 1,338,305.30 = 638,779.26 : x
  2. Step 2: Convert to fraction form
    969,957.51/1,338,305.30 = 638,779.26/x
  3. Step 3: Cross multiply
    969,957.51x = 1,338,305.30 × 638,779.26
  4. Step 4: Simplify right side
    969,957.51x = 854,881,669,188.08
  5. Step 5: Solve for x
    x = 854,881,669,188.08/969,957.51
  6. Step 6: Final answer
    x = 881,359.92

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.