Home / 804,531.80-1,109,936.45-518,218.07

Finding the Fourth Proportional to 804,531.80, 1,109,936.45 and 518,218.07

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Solution

The fourth proportional to 804,531.80, 1,109,936.45 and 518,218.07 is: 714,936.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,531.80 : 1,109,936.45 = 518,218.07 : x
  2. Step 2: Convert to fraction form
    804,531.80/1,109,936.45 = 518,218.07/x
  3. Step 3: Cross multiply
    804,531.80x = 1,109,936.45 × 518,218.07
  4. Step 4: Simplify right side
    804,531.80x = 575,189,124,941.65
  5. Step 5: Solve for x
    x = 575,189,124,941.65/804,531.80
  6. Step 6: Final answer
    x = 714,936.47

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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.