Home / 770,025.45-1,155,117.38-290,657.03

Finding the Fourth Proportional to 770,025.45, 1,155,117.38 and 290,657.03

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Solution

The fourth proportional to 770,025.45, 1,155,117.38 and 290,657.03 is: 436,015.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,025.45 : 1,155,117.38 = 290,657.03 : x
  2. Step 2: Convert to fraction form
    770,025.45/1,155,117.38 = 290,657.03/x
  3. Step 3: Cross multiply
    770,025.45x = 1,155,117.38 × 290,657.03
  4. Step 4: Simplify right side
    770,025.45x = 335,742,979,743.31
  5. Step 5: Solve for x
    x = 335,742,979,743.31/770,025.45
  6. Step 6: Final answer
    x = 436,015.43

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1.5x scale

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.