Home / 1,620,325.72-2,235,981.40-931,945.60

Finding the Fourth Proportional to 1,620,325.72, 2,235,981.40 and 931,945.60

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Solution

The fourth proportional to 1,620,325.72, 2,235,981.40 and 931,945.60 is: 1,286,045.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,620,325.72 : 2,235,981.40 = 931,945.60 : x
  2. Step 2: Convert to fraction form
    1,620,325.72/2,235,981.40 = 931,945.60/x
  3. Step 3: Cross multiply
    1,620,325.72x = 2,235,981.40 × 931,945.60
  4. Step 4: Simplify right side
    1,620,325.72x = 2,083,813,027,411.84
  5. Step 5: Solve for x
    x = 2,083,813,027,411.84/1,620,325.72
  6. Step 6: Final answer
    x = 1,286,045.76

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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.