Home / 1,136,438.15-1,568,317.68-620,225.20

Finding the Fourth Proportional to 1,136,438.15, 1,568,317.68 and 620,225.20

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Solution

The fourth proportional to 1,136,438.15, 1,568,317.68 and 620,225.20 is: 855,928.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,136,438.15 : 1,568,317.68 = 620,225.20 : x
  2. Step 2: Convert to fraction form
    1,136,438.15/1,568,317.68 = 620,225.20/x
  3. Step 3: Cross multiply
    1,136,438.15x = 1,568,317.68 × 620,225.20
  4. Step 4: Simplify right side
    1,136,438.15x = 972,710,138,899.95
  5. Step 5: Solve for x
    x = 972,710,138,899.95/1,136,438.15
  6. Step 6: Final answer
    x = 855,928.80

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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.