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Finding the Fourth Proportional to 966,630.40, 1,447,078.40 and 718,412.80

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Solution

The fourth proportional to 966,630.40, 1,447,078.40 and 718,412.80 is: 1,075,488.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    966,630.40 : 1,447,078.40 = 718,412.80 : x
  2. Step 2: Convert to fraction form
    966,630.40/1,447,078.40 = 718,412.80/x
  3. Step 3: Cross multiply
    966,630.40x = 1,447,078.40 × 718,412.80
  4. Step 4: Simplify right side
    966,630.40x = 1,039,599,645,163.52
  5. Step 5: Solve for x
    x = 1,039,599,645,163.52/966,630.40
  6. Step 6: Final answer
    x = 1,075,488.26

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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.