Home / 824,490.40-1,236,735.60-404,586.40

Finding the Fourth Proportional to 824,490.40, 1,236,735.60 and 404,586.40

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Solution

The fourth proportional to 824,490.40, 1,236,735.60 and 404,586.40 is: 606,879.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    824,490.40 : 1,236,735.60 = 404,586.40 : x
  2. Step 2: Convert to fraction form
    824,490.40/1,236,735.60 = 404,586.40/x
  3. Step 3: Cross multiply
    824,490.40x = 1,236,735.60 × 404,586.40
  4. Step 4: Simplify right side
    824,490.40x = 500,366,404,155.84
  5. Step 5: Solve for x
    x = 500,366,404,155.84/824,490.40
  6. Step 6: Final answer
    x = 606,879.60

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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.