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Finding the Fourth Proportional to 780,069.30, 1,095,246.30 and 780,069.30

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Solution

The fourth proportional to 780,069.30, 1,095,246.30 and 780,069.30 is: 1,095,246.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,069.30 : 1,095,246.30 = 780,069.30 : x
  2. Step 2: Convert to fraction form
    780,069.30/1,095,246.30 = 780,069.30/x
  3. Step 3: Cross multiply
    780,069.30x = 1,095,246.30 × 780,069.30
  4. Step 4: Simplify right side
    780,069.30x = 854,368,014,568.59
  5. Step 5: Solve for x
    x = 854,368,014,568.59/780,069.30
  6. Step 6: Final answer
    x = 1,095,246.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.