Home / 1,315,884.20-1,973,826.30-867,111.80

Finding the Fourth Proportional to 1,315,884.20, 1,973,826.30 and 867,111.80

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Solution

The fourth proportional to 1,315,884.20, 1,973,826.30 and 867,111.80 is: 1,300,667.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,315,884.20 : 1,973,826.30 = 867,111.80 : x
  2. Step 2: Convert to fraction form
    1,315,884.20/1,973,826.30 = 867,111.80/x
  3. Step 3: Cross multiply
    1,315,884.20x = 1,973,826.30 × 867,111.80
  4. Step 4: Simplify right side
    1,315,884.20x = 1,711,528,075,880.34
  5. Step 5: Solve for x
    x = 1,711,528,075,880.34/1,315,884.20
  6. Step 6: Final answer
    x = 1,300,667.70

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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.