Home / 993,608.40-1,490,412.60-362,440.20

Finding the Fourth Proportional to 993,608.40, 1,490,412.60 and 362,440.20

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Solution

The fourth proportional to 993,608.40, 1,490,412.60 and 362,440.20 is: 543,660.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    993,608.40 : 1,490,412.60 = 362,440.20 : x
  2. Step 2: Convert to fraction form
    993,608.40/1,490,412.60 = 362,440.20/x
  3. Step 3: Cross multiply
    993,608.40x = 1,490,412.60 × 362,440.20
  4. Step 4: Simplify right side
    993,608.40x = 540,185,440,826.52
  5. Step 5: Solve for x
    x = 540,185,440,826.52/993,608.40
  6. Step 6: Final answer
    x = 543,660.30

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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.