Home / 821,563.75-1,232,501.15-378,331.75

Finding the Fourth Proportional to 821,563.75, 1,232,501.15 and 378,331.75

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Solution

The fourth proportional to 821,563.75, 1,232,501.15 and 378,331.75 is: 567,569.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,563.75 : 1,232,501.15 = 378,331.75 : x
  2. Step 2: Convert to fraction form
    821,563.75/1,232,501.15 = 378,331.75/x
  3. Step 3: Cross multiply
    821,563.75x = 1,232,501.15 × 378,331.75
  4. Step 4: Simplify right side
    821,563.75x = 466,294,316,956.51
  5. Step 5: Solve for x
    x = 466,294,316,956.51/821,563.75
  6. Step 6: Final answer
    x = 567,569.24

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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.