Home / 979,307.20-1,468,960.80-531,409.60

Finding the Fourth Proportional to 979,307.20, 1,468,960.80 and 531,409.60

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Solution

The fourth proportional to 979,307.20, 1,468,960.80 and 531,409.60 is: 797,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,307.20 : 1,468,960.80 = 531,409.60 : x
  2. Step 2: Convert to fraction form
    979,307.20/1,468,960.80 = 531,409.60/x
  3. Step 3: Cross multiply
    979,307.20x = 1,468,960.80 × 531,409.60
  4. Step 4: Simplify right side
    979,307.20x = 780,619,871,143.68
  5. Step 5: Solve for x
    x = 780,619,871,143.68/979,307.20
  6. Step 6: Final answer
    x = 797,114.40

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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.