Home / 1,206,139.20-1,809,208.80-364,581.60

Finding the Fourth Proportional to 1,206,139.20, 1,809,208.80 and 364,581.60

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Solution

The fourth proportional to 1,206,139.20, 1,809,208.80 and 364,581.60 is: 546,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,139.20 : 1,809,208.80 = 364,581.60 : x
  2. Step 2: Convert to fraction form
    1,206,139.20/1,809,208.80 = 364,581.60/x
  3. Step 3: Cross multiply
    1,206,139.20x = 1,809,208.80 × 364,581.60
  4. Step 4: Simplify right side
    1,206,139.20x = 659,604,239,038.08
  5. Step 5: Solve for x
    x = 659,604,239,038.08/1,206,139.20
  6. Step 6: Final answer
    x = 546,872.40

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Double scale
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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.