Home / 780,405.74-1,170,720.02-240,707.45

Finding the Fourth Proportional to 780,405.74, 1,170,720.02 and 240,707.45

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Solution

The fourth proportional to 780,405.74, 1,170,720.02 and 240,707.45 is: 361,095.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,405.74 : 1,170,720.02 = 240,707.45 : x
  2. Step 2: Convert to fraction form
    780,405.74/1,170,720.02 = 240,707.45/x
  3. Step 3: Cross multiply
    780,405.74x = 1,170,720.02 × 240,707.45
  4. Step 4: Simplify right side
    780,405.74x = 281,801,030,678.15
  5. Step 5: Solve for x
    x = 281,801,030,678.15/780,405.74
  6. Step 6: Final answer
    x = 361,095.54

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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.