Home / 738,085.60-1,106,431.80-400,628.80

Finding the Fourth Proportional to 738,085.60, 1,106,431.80 and 400,628.80

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Solution

The fourth proportional to 738,085.60, 1,106,431.80 and 400,628.80 is: 600,565.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,085.60 : 1,106,431.80 = 400,628.80 : x
  2. Step 2: Convert to fraction form
    738,085.60/1,106,431.80 = 400,628.80/x
  3. Step 3: Cross multiply
    738,085.60x = 1,106,431.80 × 400,628.80
  4. Step 4: Simplify right side
    738,085.60x = 443,268,444,315.84
  5. Step 5: Solve for x
    x = 443,268,444,315.84/738,085.60
  6. Step 6: Final answer
    x = 600,565.09

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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.