Home / 990,533.70-1,485,800.55-242,579.70

Finding the Fourth Proportional to 990,533.70, 1,485,800.55 and 242,579.70

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Solution

The fourth proportional to 990,533.70, 1,485,800.55 and 242,579.70 is: 363,869.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,533.70 : 1,485,800.55 = 242,579.70 : x
  2. Step 2: Convert to fraction form
    990,533.70/1,485,800.55 = 242,579.70/x
  3. Step 3: Cross multiply
    990,533.70x = 1,485,800.55 × 242,579.70
  4. Step 4: Simplify right side
    990,533.70x = 360,425,051,678.84
  5. Step 5: Solve for x
    x = 360,425,051,678.84/990,533.70
  6. Step 6: Final answer
    x = 363,869.55

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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.