Home / 1,212,808.60-1,820,249.70-539,925.40

Finding the Fourth Proportional to 1,212,808.60, 1,820,249.70 and 539,925.40

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Solution

The fourth proportional to 1,212,808.60, 1,820,249.70 and 539,925.40 is: 810,349.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,808.60 : 1,820,249.70 = 539,925.40 : x
  2. Step 2: Convert to fraction form
    1,212,808.60/1,820,249.70 = 539,925.40/x
  3. Step 3: Cross multiply
    1,212,808.60x = 1,820,249.70 × 539,925.40
  4. Step 4: Simplify right side
    1,212,808.60x = 982,799,047,372.38
  5. Step 5: Solve for x
    x = 982,799,047,372.38/1,212,808.60
  6. Step 6: Final answer
    x = 810,349.67

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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.