Home / 669,856.60-1,004,768.70-403,415.20

Finding the Fourth Proportional to 669,856.60, 1,004,768.70 and 403,415.20

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Solution

The fourth proportional to 669,856.60, 1,004,768.70 and 403,415.20 is: 605,113.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,856.60 : 1,004,768.70 = 403,415.20 : x
  2. Step 2: Convert to fraction form
    669,856.60/1,004,768.70 = 403,415.20/x
  3. Step 3: Cross multiply
    669,856.60x = 1,004,768.70 × 403,415.20
  4. Step 4: Simplify right side
    669,856.60x = 405,338,966,064.24
  5. Step 5: Solve for x
    x = 405,338,966,064.24/669,856.60
  6. Step 6: Final answer
    x = 605,113.04

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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.