Home / 1,438,745.02-2,157,650.29-478,942.81

Finding the Fourth Proportional to 1,438,745.02, 2,157,650.29 and 478,942.81

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Solution

The fourth proportional to 1,438,745.02, 2,157,650.29 and 478,942.81 is: 718,258.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,745.02 : 2,157,650.29 = 478,942.81 : x
  2. Step 2: Convert to fraction form
    1,438,745.02/2,157,650.29 = 478,942.81/x
  3. Step 3: Cross multiply
    1,438,745.02x = 2,157,650.29 × 478,942.81
  4. Step 4: Simplify right side
    1,438,745.02x = 1,033,391,088,094.47
  5. Step 5: Solve for x
    x = 1,033,391,088,094.47/1,438,745.02
  6. Step 6: Final answer
    x = 718,258.67

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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.