Home / 804,511.81-1,109,908.85-518,198.07

Finding the Fourth Proportional to 804,511.81, 1,109,908.85 and 518,198.07

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Solution

The fourth proportional to 804,511.81, 1,109,908.85 and 518,198.07 is: 714,908.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,511.81 : 1,109,908.85 = 518,198.07 : x
  2. Step 2: Convert to fraction form
    804,511.81/1,109,908.85 = 518,198.07/x
  3. Step 3: Cross multiply
    804,511.81x = 1,109,908.85 × 518,198.07
  4. Step 4: Simplify right side
    804,511.81x = 575,152,615,805.39
  5. Step 5: Solve for x
    x = 575,152,615,805.39/804,511.81
  6. Step 6: Final answer
    x = 714,908.85

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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.