Home / 470,795.95-649,088.60-304,928.81

Finding the Fourth Proportional to 470,795.95, 649,088.60 and 304,928.81

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Solution

The fourth proportional to 470,795.95, 649,088.60 and 304,928.81 is: 420,406.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,795.95 : 649,088.60 = 304,928.81 : x
  2. Step 2: Convert to fraction form
    470,795.95/649,088.60 = 304,928.81/x
  3. Step 3: Cross multiply
    470,795.95x = 649,088.60 × 304,928.81
  4. Step 4: Simplify right side
    470,795.95x = 197,925,814,382.57
  5. Step 5: Solve for x
    x = 197,925,814,382.57/470,795.95
  6. Step 6: Final answer
    x = 420,406.79

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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.