Home / 1,221,364.80-1,832,047.20-1,025,409.60

Finding the Fourth Proportional to 1,221,364.80, 1,832,047.20 and 1,025,409.60

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Solution

The fourth proportional to 1,221,364.80, 1,832,047.20 and 1,025,409.60 is: 1,538,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,221,364.80 : 1,832,047.20 = 1,025,409.60 : x
  2. Step 2: Convert to fraction form
    1,221,364.80/1,832,047.20 = 1,025,409.60/x
  3. Step 3: Cross multiply
    1,221,364.80x = 1,832,047.20 × 1,025,409.60
  4. Step 4: Simplify right side
    1,221,364.80x = 1,878,598,786,533.12
  5. Step 5: Solve for x
    x = 1,878,598,786,533.12/1,221,364.80
  6. Step 6: Final answer
    x = 1,538,114.40

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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.