Home / 1,309,311.40-1,806,638.55-736,317.40

Finding the Fourth Proportional to 1,309,311.40, 1,806,638.55 and 736,317.40

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Solution

The fourth proportional to 1,309,311.40, 1,806,638.55 and 736,317.40 is: 1,015,999.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,309,311.40 : 1,806,638.55 = 736,317.40 : x
  2. Step 2: Convert to fraction form
    1,309,311.40/1,806,638.55 = 736,317.40/x
  3. Step 3: Cross multiply
    1,309,311.40x = 1,806,638.55 × 736,317.40
  4. Step 4: Simplify right side
    1,309,311.40x = 1,330,259,399,875.77
  5. Step 5: Solve for x
    x = 1,330,259,399,875.77/1,309,311.40
  6. Step 6: Final answer
    x = 1,015,999.25

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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.