Home / 724,348.40-1,085,647.80-369,179.60

Finding the Fourth Proportional to 724,348.40, 1,085,647.80 and 369,179.60

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Solution

The fourth proportional to 724,348.40, 1,085,647.80 and 369,179.60 is: 553,323.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,348.40 : 1,085,647.80 = 369,179.60 : x
  2. Step 2: Convert to fraction form
    724,348.40/1,085,647.80 = 369,179.60/x
  3. Step 3: Cross multiply
    724,348.40x = 1,085,647.80 × 369,179.60
  4. Step 4: Simplify right side
    724,348.40x = 400,799,020,544.88
  5. Step 5: Solve for x
    x = 400,799,020,544.88/724,348.40
  6. Step 6: Final answer
    x = 553,323.54

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1.5x scale

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.