Home / 821,453.40-1,230,336.90-673,997.40

Finding the Fourth Proportional to 821,453.40, 1,230,336.90 and 673,997.40

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Solution

The fourth proportional to 821,453.40, 1,230,336.90 and 673,997.40 is: 1,009,483.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,453.40 : 1,230,336.90 = 673,997.40 : x
  2. Step 2: Convert to fraction form
    821,453.40/1,230,336.90 = 673,997.40/x
  3. Step 3: Cross multiply
    821,453.40x = 1,230,336.90 × 673,997.40
  4. Step 4: Simplify right side
    821,453.40x = 829,243,871,724.06
  5. Step 5: Solve for x
    x = 829,243,871,724.06/821,453.40
  6. Step 6: Final answer
    x = 1,009,483.77

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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.