Home / 1,308,506.40-1,804,129.20-1,065,895.20

Finding the Fourth Proportional to 1,308,506.40, 1,804,129.20 and 1,065,895.20

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Solution

The fourth proportional to 1,308,506.40, 1,804,129.20 and 1,065,895.20 is: 1,469,624.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,308,506.40 : 1,804,129.20 = 1,065,895.20 : x
  2. Step 2: Convert to fraction form
    1,308,506.40/1,804,129.20 = 1,065,895.20/x
  3. Step 3: Cross multiply
    1,308,506.40x = 1,804,129.20 × 1,065,895.20
  4. Step 4: Simplify right side
    1,308,506.40x = 1,923,012,654,459.84
  5. Step 5: Solve for x
    x = 1,923,012,654,459.84/1,308,506.40
  6. Step 6: Final answer
    x = 1,469,624.19

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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.