Home / 821,564.25-1,232,501.90-378,332.25

Finding the Fourth Proportional to 821,564.25, 1,232,501.90 and 378,332.25

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Solution

The fourth proportional to 821,564.25, 1,232,501.90 and 378,332.25 is: 567,569.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,564.25 : 1,232,501.90 = 378,332.25 : x
  2. Step 2: Convert to fraction form
    821,564.25/1,232,501.90 = 378,332.25/x
  3. Step 3: Cross multiply
    821,564.25x = 1,232,501.90 × 378,332.25
  4. Step 4: Simplify right side
    821,564.25x = 466,295,215,064.61
  5. Step 5: Solve for x
    x = 466,295,215,064.61/821,564.25
  6. Step 6: Final answer
    x = 567,569.99

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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.