Home / 1,315,101.40-1,973,429.70-867,117.40

Finding the Fourth Proportional to 1,315,101.40, 1,973,429.70 and 867,117.40

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Solution

The fourth proportional to 1,315,101.40, 1,973,429.70 and 867,117.40 is: 1,301,188.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,101.40 : 1,973,429.70 = 867,117.40 : x
  2. Step 2: Convert to fraction form
    1,315,101.40/1,973,429.70 = 867,117.40/x
  3. Step 3: Cross multiply
    1,315,101.40x = 1,973,429.70 × 867,117.40
  4. Step 4: Simplify right side
    1,315,101.40x = 1,711,195,230,546.78
  5. Step 5: Solve for x
    x = 1,711,195,230,546.78/1,315,101.40
  6. Step 6: Final answer
    x = 1,301,188.81

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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.