Home / 1,370,151.76-1,890,622.27-789,158.81

Finding the Fourth Proportional to 1,370,151.76, 1,890,622.27 and 789,158.81

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Solution

The fourth proportional to 1,370,151.76, 1,890,622.27 and 789,158.81 is: 1,088,931.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,370,151.76 : 1,890,622.27 = 789,158.81 : x
  2. Step 2: Convert to fraction form
    1,370,151.76/1,890,622.27 = 789,158.81/x
  3. Step 3: Cross multiply
    1,370,151.76x = 1,890,622.27 × 789,158.81
  4. Step 4: Simplify right side
    1,370,151.76x = 1,492,001,216,709.31
  5. Step 5: Solve for x
    x = 1,492,001,216,709.31/1,370,151.76
  6. Step 6: Final answer
    x = 1,088,931.36

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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.