Home / 851,721.84-1,276,079.40-759,051.36

Finding the Fourth Proportional to 851,721.84, 1,276,079.40 and 759,051.36

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Solution

The fourth proportional to 851,721.84, 1,276,079.40 and 759,051.36 is: 1,137,237.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    851,721.84 : 1,276,079.40 = 759,051.36 : x
  2. Step 2: Convert to fraction form
    851,721.84/1,276,079.40 = 759,051.36/x
  3. Step 3: Cross multiply
    851,721.84x = 1,276,079.40 × 759,051.36
  4. Step 4: Simplify right side
    851,721.84x = 968,609,804,037.98
  5. Step 5: Solve for x
    x = 968,609,804,037.98/851,721.84
  6. Step 6: Final answer
    x = 1,137,237.25

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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.