Home / 1,315,864.20-1,973,796.30-867,091.80

Finding the Fourth Proportional to 1,315,864.20, 1,973,796.30 and 867,091.80

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Solution

The fourth proportional to 1,315,864.20, 1,973,796.30 and 867,091.80 is: 1,300,637.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,864.20 : 1,973,796.30 = 867,091.80 : x
  2. Step 2: Convert to fraction form
    1,315,864.20/1,973,796.30 = 867,091.80/x
  3. Step 3: Cross multiply
    1,315,864.20x = 1,973,796.30 × 867,091.80
  4. Step 4: Simplify right side
    1,315,864.20x = 1,711,462,586,600.34
  5. Step 5: Solve for x
    x = 1,711,462,586,600.34/1,315,864.20
  6. Step 6: Final answer
    x = 1,300,637.70

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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.