Home / 780,584.81-1,170,955.08-211,975.13

Finding the Fourth Proportional to 780,584.81, 1,170,955.08 and 211,975.13

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Solution

The fourth proportional to 780,584.81, 1,170,955.08 and 211,975.13 is: 317,983.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,584.81 : 1,170,955.08 = 211,975.13 : x
  2. Step 2: Convert to fraction form
    780,584.81/1,170,955.08 = 211,975.13/x
  3. Step 3: Cross multiply
    780,584.81x = 1,170,955.08 × 211,975.13
  4. Step 4: Simplify right side
    780,584.81x = 248,213,355,307.16
  5. Step 5: Solve for x
    x = 248,213,355,307.16/780,584.81
  6. Step 6: Final answer
    x = 317,983.84

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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.