Home / 990,512.40-1,485,768.60-242,558.40

Finding the Fourth Proportional to 990,512.40, 1,485,768.60 and 242,558.40

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Solution

The fourth proportional to 990,512.40, 1,485,768.60 and 242,558.40 is: 363,837.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,512.40 : 1,485,768.60 = 242,558.40 : x
  2. Step 2: Convert to fraction form
    990,512.40/1,485,768.60 = 242,558.40/x
  3. Step 3: Cross multiply
    990,512.40x = 1,485,768.60 × 242,558.40
  4. Step 4: Simplify right side
    990,512.40x = 360,385,654,386.24
  5. Step 5: Solve for x
    x = 360,385,654,386.24/990,512.40
  6. Step 6: Final answer
    x = 363,837.60

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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.