Home / 1,382,763.60-2,074,145.40-385,491.60

Finding the Fourth Proportional to 1,382,763.60, 2,074,145.40 and 385,491.60

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Solution

The fourth proportional to 1,382,763.60, 2,074,145.40 and 385,491.60 is: 578,237.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,763.60 : 2,074,145.40 = 385,491.60 : x
  2. Step 2: Convert to fraction form
    1,382,763.60/2,074,145.40 = 385,491.60/x
  3. Step 3: Cross multiply
    1,382,763.60x = 2,074,145.40 × 385,491.60
  4. Step 4: Simplify right side
    1,382,763.60x = 799,565,628,878.64
  5. Step 5: Solve for x
    x = 799,565,628,878.64/1,382,763.60
  6. Step 6: Final answer
    x = 578,237.40

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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.