Home / 780,352.60-1,170,053.70-306,470.20

Finding the Fourth Proportional to 780,352.60, 1,170,053.70 and 306,470.20

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Solution

The fourth proportional to 780,352.60, 1,170,053.70 and 306,470.20 is: 459,518.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,352.60 : 1,170,053.70 = 306,470.20 : x
  2. Step 2: Convert to fraction form
    780,352.60/1,170,053.70 = 306,470.20/x
  3. Step 3: Cross multiply
    780,352.60x = 1,170,053.70 × 306,470.20
  4. Step 4: Simplify right side
    780,352.60x = 358,586,591,449.74
  5. Step 5: Solve for x
    x = 358,586,591,449.74/780,352.60
  6. Step 6: Final answer
    x = 459,518.67

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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.