Home / 780,013.07-1,170,019.60-189,037.07

Finding the Fourth Proportional to 780,013.07, 1,170,019.60 and 189,037.07

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Solution

The fourth proportional to 780,013.07, 1,170,019.60 and 189,037.07 is: 283,555.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,013.07 : 1,170,019.60 = 189,037.07 : x
  2. Step 2: Convert to fraction form
    780,013.07/1,170,019.60 = 189,037.07/x
  3. Step 3: Cross multiply
    780,013.07x = 1,170,019.60 × 189,037.07
  4. Step 4: Simplify right side
    780,013.07x = 221,177,077,026.57
  5. Step 5: Solve for x
    x = 221,177,077,026.57/780,013.07
  6. Step 6: Final answer
    x = 283,555.60

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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.