Home / 821,564.76-1,232,502.64-378,332.76

Finding the Fourth Proportional to 821,564.76, 1,232,502.64 and 378,332.76

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Solution

The fourth proportional to 821,564.76, 1,232,502.64 and 378,332.76 is: 567,570.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,564.76 : 1,232,502.64 = 378,332.76 : x
  2. Step 2: Convert to fraction form
    821,564.76/1,232,502.64 = 378,332.76/x
  3. Step 3: Cross multiply
    821,564.76x = 1,232,502.64 × 378,332.76
  4. Step 4: Simplify right side
    821,564.76x = 466,296,125,498.49
  5. Step 5: Solve for x
    x = 466,296,125,498.49/821,564.76
  6. Step 6: Final answer
    x = 567,570.75

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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.