Home / 1,642,136.80-2,463,205.20-970,290.40

Finding the Fourth Proportional to 1,642,136.80, 2,463,205.20 and 970,290.40

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Solution

The fourth proportional to 1,642,136.80, 2,463,205.20 and 970,290.40 is: 1,455,435.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,642,136.80 : 2,463,205.20 = 970,290.40 : x
  2. Step 2: Convert to fraction form
    1,642,136.80/2,463,205.20 = 970,290.40/x
  3. Step 3: Cross multiply
    1,642,136.80x = 2,463,205.20 × 970,290.40
  4. Step 4: Simplify right side
    1,642,136.80x = 2,390,024,358,790.08
  5. Step 5: Solve for x
    x = 2,390,024,358,790.08/1,642,136.80
  6. Step 6: Final answer
    x = 1,455,435.60

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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.