Home / 684,866.40-1,027,299.60-404,239.20

Finding the Fourth Proportional to 684,866.40, 1,027,299.60 and 404,239.20

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Solution

The fourth proportional to 684,866.40, 1,027,299.60 and 404,239.20 is: 606,358.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,866.40 : 1,027,299.60 = 404,239.20 : x
  2. Step 2: Convert to fraction form
    684,866.40/1,027,299.60 = 404,239.20/x
  3. Step 3: Cross multiply
    684,866.40x = 1,027,299.60 × 404,239.20
  4. Step 4: Simplify right side
    684,866.40x = 415,274,768,464.32
  5. Step 5: Solve for x
    x = 415,274,768,464.32/684,866.40
  6. Step 6: Final answer
    x = 606,358.80

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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.