Home / 983,415.80-1,475,123.70-867,942.20

Finding the Fourth Proportional to 983,415.80, 1,475,123.70 and 867,942.20

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Solution

The fourth proportional to 983,415.80, 1,475,123.70 and 867,942.20 is: 1,301,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    983,415.80 : 1,475,123.70 = 867,942.20 : x
  2. Step 2: Convert to fraction form
    983,415.80/1,475,123.70 = 867,942.20/x
  3. Step 3: Cross multiply
    983,415.80x = 1,475,123.70 × 867,942.20
  4. Step 4: Simplify right side
    983,415.80x = 1,280,322,109,450.14
  5. Step 5: Solve for x
    x = 1,280,322,109,450.14/983,415.80
  6. Step 6: Final answer
    x = 1,301,913.30

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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.