Home / 1,386,904.80-2,080,357.20-336,280.80

Finding the Fourth Proportional to 1,386,904.80, 2,080,357.20 and 336,280.80

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Solution

The fourth proportional to 1,386,904.80, 2,080,357.20 and 336,280.80 is: 504,421.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,904.80 : 2,080,357.20 = 336,280.80 : x
  2. Step 2: Convert to fraction form
    1,386,904.80/2,080,357.20 = 336,280.80/x
  3. Step 3: Cross multiply
    1,386,904.80x = 2,080,357.20 × 336,280.80
  4. Step 4: Simplify right side
    1,386,904.80x = 699,584,183,501.76
  5. Step 5: Solve for x
    x = 699,584,183,501.76/1,386,904.80
  6. Step 6: Final answer
    x = 504,421.20

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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.