Home / 1,347,409.60-2,021,146.80-400,811.20

Finding the Fourth Proportional to 1,347,409.60, 2,021,146.80 and 400,811.20

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Solution

The fourth proportional to 1,347,409.60, 2,021,146.80 and 400,811.20 is: 601,226.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,347,409.60 : 2,021,146.80 = 400,811.20 : x
  2. Step 2: Convert to fraction form
    1,347,409.60/2,021,146.80 = 400,811.20/x
  3. Step 3: Cross multiply
    1,347,409.60x = 2,021,146.80 × 400,811.20
  4. Step 4: Simplify right side
    1,347,409.60x = 810,098,274,284.16
  5. Step 5: Solve for x
    x = 810,098,274,284.16/1,347,409.60
  6. Step 6: Final answer
    x = 601,226.44

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1.5x scale

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.