Home / 1,375,752.40-2,065,596.90-978,155.80

Finding the Fourth Proportional to 1,375,752.40, 2,065,596.90 and 978,155.80

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Solution

The fourth proportional to 1,375,752.40, 2,065,596.90 and 978,155.80 is: 1,468,633.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,752.40 : 2,065,596.90 = 978,155.80 : x
  2. Step 2: Convert to fraction form
    1,375,752.40/2,065,596.90 = 978,155.80/x
  3. Step 3: Cross multiply
    1,375,752.40x = 2,065,596.90 × 978,155.80
  4. Step 4: Simplify right side
    1,375,752.40x = 2,020,475,588,197.02
  5. Step 5: Solve for x
    x = 2,020,475,588,197.02/1,375,752.40
  6. Step 6: Final answer
    x = 1,468,633.16

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.