Home / 1,040,657.80-1,560,986.70-788,715.40

Finding the Fourth Proportional to 1,040,657.80, 1,560,986.70 and 788,715.40

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Solution

The fourth proportional to 1,040,657.80, 1,560,986.70 and 788,715.40 is: 1,183,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,657.80 : 1,560,986.70 = 788,715.40 : x
  2. Step 2: Convert to fraction form
    1,040,657.80/1,560,986.70 = 788,715.40/x
  3. Step 3: Cross multiply
    1,040,657.80x = 1,560,986.70 × 788,715.40
  4. Step 4: Simplify right side
    1,040,657.80x = 1,231,174,249,485.18
  5. Step 5: Solve for x
    x = 1,231,174,249,485.18/1,040,657.80
  6. Step 6: Final answer
    x = 1,183,073.10

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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.