Home / 1,318,133.25-1,977,200.28-320,861.25

Finding the Fourth Proportional to 1,318,133.25, 1,977,200.28 and 320,861.25

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Solution

The fourth proportional to 1,318,133.25, 1,977,200.28 and 320,861.25 is: 481,291.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,133.25 : 1,977,200.28 = 320,861.25 : x
  2. Step 2: Convert to fraction form
    1,318,133.25/1,977,200.28 = 320,861.25/x
  3. Step 3: Cross multiply
    1,318,133.25x = 1,977,200.28 × 320,861.25
  4. Step 4: Simplify right side
    1,318,133.25x = 634,406,953,341.15
  5. Step 5: Solve for x
    x = 634,406,953,341.15/1,318,133.25
  6. Step 6: Final answer
    x = 481,291.97

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Double scale
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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.