Home / 1,344,130.25-2,015,367.65-660,147.21

Finding the Fourth Proportional to 1,344,130.25, 2,015,367.65 and 660,147.21

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Solution

The fourth proportional to 1,344,130.25, 2,015,367.65 and 660,147.21 is: 989,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,344,130.25 : 2,015,367.65 = 660,147.21 : x
  2. Step 2: Convert to fraction form
    1,344,130.25/2,015,367.65 = 660,147.21/x
  3. Step 3: Cross multiply
    1,344,130.25x = 2,015,367.65 × 660,147.21
  4. Step 4: Simplify right side
    1,344,130.25x = 1,330,439,331,271.76
  5. Step 5: Solve for x
    x = 1,330,439,331,271.76/1,344,130.25
  6. Step 6: Final answer
    x = 989,814.30

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1.5x scale

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.