Home / 780,485.10-1,170,478.50-247,881.56

Finding the Fourth Proportional to 780,485.10, 1,170,478.50 and 247,881.56

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Solution

The fourth proportional to 780,485.10, 1,170,478.50 and 247,881.56 is: 371,743.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,485.10 : 1,170,478.50 = 247,881.56 : x
  2. Step 2: Convert to fraction form
    780,485.10/1,170,478.50 = 247,881.56/x
  3. Step 3: Cross multiply
    780,485.10x = 1,170,478.50 × 247,881.56
  4. Step 4: Simplify right side
    780,485.10x = 290,140,030,674.07
  5. Step 5: Solve for x
    x = 290,140,030,674.07/780,485.10
  6. Step 6: Final answer
    x = 371,743.20

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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.