Home / 724,336.40-1,085,629.80-369,167.60

Finding the Fourth Proportional to 724,336.40, 1,085,629.80 and 369,167.60

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Solution

The fourth proportional to 724,336.40, 1,085,629.80 and 369,167.60 is: 553,305.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,336.40 : 1,085,629.80 = 369,167.60 : x
  2. Step 2: Convert to fraction form
    724,336.40/1,085,629.80 = 369,167.60/x
  3. Step 3: Cross multiply
    724,336.40x = 1,085,629.80 × 369,167.60
  4. Step 4: Simplify right side
    724,336.40x = 400,779,347,754.48
  5. Step 5: Solve for x
    x = 400,779,347,754.48/724,336.40
  6. Step 6: Final answer
    x = 553,305.55

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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.