Home / 909,930.80-1,364,896.20-626,495.60

Finding the Fourth Proportional to 909,930.80, 1,364,896.20 and 626,495.60

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Solution

The fourth proportional to 909,930.80, 1,364,896.20 and 626,495.60 is: 939,743.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,930.80 : 1,364,896.20 = 626,495.60 : x
  2. Step 2: Convert to fraction form
    909,930.80/1,364,896.20 = 626,495.60/x
  3. Step 3: Cross multiply
    909,930.80x = 1,364,896.20 × 626,495.60
  4. Step 4: Simplify right side
    909,930.80x = 855,101,463,756.72
  5. Step 5: Solve for x
    x = 855,101,463,756.72/909,930.80
  6. Step 6: Final answer
    x = 939,743.40

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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.