Home / 1,689,738.40-2,331,749.82-964,557.28

Finding the Fourth Proportional to 1,689,738.40, 2,331,749.82 and 964,557.28

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Solution

The fourth proportional to 1,689,738.40, 2,331,749.82 and 964,557.28 is: 1,331,038.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,689,738.40 : 2,331,749.82 = 964,557.28 : x
  2. Step 2: Convert to fraction form
    1,689,738.40/2,331,749.82 = 964,557.28/x
  3. Step 3: Cross multiply
    1,689,738.40x = 2,331,749.82 × 964,557.28
  4. Step 4: Simplify right side
    1,689,738.40x = 2,249,106,258,190.32
  5. Step 5: Solve for x
    x = 2,249,106,258,190.32/1,689,738.40
  6. Step 6: Final answer
    x = 1,331,038.14

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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.