Home / 1,395,420.40-2,093,284.20-509,148.40

Finding the Fourth Proportional to 1,395,420.40, 2,093,284.20 and 509,148.40

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Solution

The fourth proportional to 1,395,420.40, 2,093,284.20 and 509,148.40 is: 763,778.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,420.40 : 2,093,284.20 = 509,148.40 : x
  2. Step 2: Convert to fraction form
    1,395,420.40/2,093,284.20 = 509,148.40/x
  3. Step 3: Cross multiply
    1,395,420.40x = 2,093,284.20 × 509,148.40
  4. Step 4: Simplify right side
    1,395,420.40x = 1,065,792,301,175.28
  5. Step 5: Solve for x
    x = 1,065,792,301,175.28/1,395,420.40
  6. Step 6: Final answer
    x = 763,778.64

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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.