Home / 470,018.08-648,556.51-268,775.20

Finding the Fourth Proportional to 470,018.08, 648,556.51 and 268,775.20

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Solution

The fourth proportional to 470,018.08, 648,556.51 and 268,775.20 is: 370,870.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,018.08 : 648,556.51 = 268,775.20 : x
  2. Step 2: Convert to fraction form
    470,018.08/648,556.51 = 268,775.20/x
  3. Step 3: Cross multiply
    470,018.08x = 648,556.51 × 268,775.20
  4. Step 4: Simplify right side
    470,018.08x = 174,315,901,099.89
  5. Step 5: Solve for x
    x = 174,315,901,099.89/470,018.08
  6. Step 6: Final answer
    x = 370,870.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.