Home / 724,286.40-1,086,429.60-535,329.60

Finding the Fourth Proportional to 724,286.40, 1,086,429.60 and 535,329.60

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Solution

The fourth proportional to 724,286.40, 1,086,429.60 and 535,329.60 is: 802,994.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,286.40 : 1,086,429.60 = 535,329.60 : x
  2. Step 2: Convert to fraction form
    724,286.40/1,086,429.60 = 535,329.60/x
  3. Step 3: Cross multiply
    724,286.40x = 1,086,429.60 × 535,329.60
  4. Step 4: Simplify right side
    724,286.40x = 581,597,923,196.16
  5. Step 5: Solve for x
    x = 581,597,923,196.16/724,286.40
  6. Step 6: Final answer
    x = 802,994.40

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Double scale
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Similar ratio
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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.