Home / 855,400.29-1,180,410.33-487,891.95

Finding the Fourth Proportional to 855,400.29, 1,180,410.33 and 487,891.95

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Solution

The fourth proportional to 855,400.29, 1,180,410.33 and 487,891.95 is: 673,266.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,400.29 : 1,180,410.33 = 487,891.95 : x
  2. Step 2: Convert to fraction form
    855,400.29/1,180,410.33 = 487,891.95/x
  3. Step 3: Cross multiply
    855,400.29x = 1,180,410.33 × 487,891.95
  4. Step 4: Simplify right side
    855,400.29x = 575,912,697,703.84
  5. Step 5: Solve for x
    x = 575,912,697,703.84/855,400.29
  6. Step 6: Final answer
    x = 673,266.90

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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.