Home / 470,018.58-648,557.20-268,775.70

Finding the Fourth Proportional to 470,018.58, 648,557.20 and 268,775.70

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Solution

The fourth proportional to 470,018.58, 648,557.20 and 268,775.70 is: 370,871.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,018.58 : 648,557.20 = 268,775.70 : x
  2. Step 2: Convert to fraction form
    470,018.58/648,557.20 = 268,775.70/x
  3. Step 3: Cross multiply
    470,018.58x = 648,557.20 × 268,775.70
  4. Step 4: Simplify right side
    470,018.58x = 174,316,410,833.38
  5. Step 5: Solve for x
    x = 174,316,410,833.38/470,018.58
  6. Step 6: Final answer
    x = 370,871.32

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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.