Home / 628,003.60-942,005.40-603,509.20

Finding the Fourth Proportional to 628,003.60, 942,005.40 and 603,509.20

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Solution

The fourth proportional to 628,003.60, 942,005.40 and 603,509.20 is: 905,263.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    628,003.60 : 942,005.40 = 603,509.20 : x
  2. Step 2: Convert to fraction form
    628,003.60/942,005.40 = 603,509.20/x
  3. Step 3: Cross multiply
    628,003.60x = 942,005.40 × 603,509.20
  4. Step 4: Simplify right side
    628,003.60x = 568,508,925,349.68
  5. Step 5: Solve for x
    x = 568,508,925,349.68/628,003.60
  6. Step 6: Final answer
    x = 905,263.80

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Similar ratio
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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.