Home / 670,415.60-1,004,311.20-403,382.90

Finding the Fourth Proportional to 670,415.60, 1,004,311.20 and 403,382.90

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Solution

The fourth proportional to 670,415.60, 1,004,311.20 and 403,382.90 is: 604,284.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,415.60 : 1,004,311.20 = 403,382.90 : x
  2. Step 2: Convert to fraction form
    670,415.60/1,004,311.20 = 403,382.90/x
  3. Step 3: Cross multiply
    670,415.60x = 1,004,311.20 × 403,382.90
  4. Step 4: Simplify right side
    670,415.60x = 405,121,964,358.48
  5. Step 5: Solve for x
    x = 405,121,964,358.48/670,415.60
  6. Step 6: Final answer
    x = 604,284.81

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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.