Home / 909,969.80-1,364,954.70-626,534.60

Finding the Fourth Proportional to 909,969.80, 1,364,954.70 and 626,534.60

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Solution

The fourth proportional to 909,969.80, 1,364,954.70 and 626,534.60 is: 939,801.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    909,969.80 : 1,364,954.70 = 626,534.60 : x
  2. Step 2: Convert to fraction form
    909,969.80/1,364,954.70 = 626,534.60/x
  3. Step 3: Cross multiply
    909,969.80x = 1,364,954.70 × 626,534.60
  4. Step 4: Simplify right side
    909,969.80x = 855,191,346,982.62
  5. Step 5: Solve for x
    x = 855,191,346,982.62/909,969.80
  6. Step 6: Final answer
    x = 939,801.90

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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.