Home / 669,436.40-1,003,571.40-403,302.80

Finding the Fourth Proportional to 669,436.40, 1,003,571.40 and 403,302.80

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Solution

The fourth proportional to 669,436.40, 1,003,571.40 and 403,302.80 is: 604,602.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    669,436.40 : 1,003,571.40 = 403,302.80 : x
  2. Step 2: Convert to fraction form
    669,436.40/1,003,571.40 = 403,302.80/x
  3. Step 3: Cross multiply
    669,436.40x = 1,003,571.40 × 403,302.80
  4. Step 4: Simplify right side
    669,436.40x = 404,743,155,619.92
  5. Step 5: Solve for x
    x = 404,743,155,619.92/669,436.40
  6. Step 6: Final answer
    x = 604,602.85

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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.