Home / 1,328,760.40-1,994,015.40-760,140.40

Finding the Fourth Proportional to 1,328,760.40, 1,994,015.40 and 760,140.40

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Solution

The fourth proportional to 1,328,760.40, 1,994,015.40 and 760,140.40 is: 1,140,711.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,760.40 : 1,994,015.40 = 760,140.40 : x
  2. Step 2: Convert to fraction form
    1,328,760.40/1,994,015.40 = 760,140.40/x
  3. Step 3: Cross multiply
    1,328,760.40x = 1,994,015.40 × 760,140.40
  4. Step 4: Simplify right side
    1,328,760.40x = 1,515,731,663,762.16
  5. Step 5: Solve for x
    x = 1,515,731,663,762.16/1,328,760.40
  6. Step 6: Final answer
    x = 1,140,711.04

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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.