Home / 855,418.20-1,180,397.14-511,185.81

Finding the Fourth Proportional to 855,418.20, 1,180,397.14 and 511,185.81

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Solution

The fourth proportional to 855,418.20, 1,180,397.14 and 511,185.81 is: 705,388.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,418.20 : 1,180,397.14 = 511,185.81 : x
  2. Step 2: Convert to fraction form
    855,418.20/1,180,397.14 = 511,185.81/x
  3. Step 3: Cross multiply
    855,418.20x = 1,180,397.14 × 511,185.81
  4. Step 4: Simplify right side
    855,418.20x = 603,402,271,281.11
  5. Step 5: Solve for x
    x = 603,402,271,281.11/855,418.20
  6. Step 6: Final answer
    x = 705,388.63

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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.