Home / 855,435.34-1,180,453.88-487,858.51

Finding the Fourth Proportional to 855,435.34, 1,180,453.88 and 487,858.51

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Solution

The fourth proportional to 855,435.34, 1,180,453.88 and 487,858.51 is: 673,218.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,435.34 : 1,180,453.88 = 487,858.51 : x
  2. Step 2: Convert to fraction form
    855,435.34/1,180,453.88 = 487,858.51/x
  3. Step 3: Cross multiply
    855,435.34x = 1,180,453.88 × 487,858.51
  4. Step 4: Simplify right side
    855,435.34x = 575,894,471,020.52
  5. Step 5: Solve for x
    x = 575,894,471,020.52/855,435.34
  6. Step 6: Final answer
    x = 673,218.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.