Home / 1,085,603.40-1,628,405.10-975,378.60

Finding the Fourth Proportional to 1,085,603.40, 1,628,405.10 and 975,378.60

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Solution

The fourth proportional to 1,085,603.40, 1,628,405.10 and 975,378.60 is: 1,463,067.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,603.40 : 1,628,405.10 = 975,378.60 : x
  2. Step 2: Convert to fraction form
    1,085,603.40/1,628,405.10 = 975,378.60/x
  3. Step 3: Cross multiply
    1,085,603.40x = 1,628,405.10 × 975,378.60
  4. Step 4: Simplify right side
    1,085,603.40x = 1,588,311,486,670.86
  5. Step 5: Solve for x
    x = 1,588,311,486,670.86/1,085,603.40
  6. Step 6: Final answer
    x = 1,463,067.90

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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.