Home / 816,985.11-1,126,647.86-545,064.06

Finding the Fourth Proportional to 816,985.11, 1,126,647.86 and 545,064.06

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Solution

The fourth proportional to 816,985.11, 1,126,647.86 and 545,064.06 is: 751,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,985.11 : 1,126,647.86 = 545,064.06 : x
  2. Step 2: Convert to fraction form
    816,985.11/1,126,647.86 = 545,064.06/x
  3. Step 3: Cross multiply
    816,985.11x = 1,126,647.86 × 545,064.06
  4. Step 4: Simplify right side
    816,985.11x = 614,095,254,036.59
  5. Step 5: Solve for x
    x = 614,095,254,036.59/816,985.11
  6. Step 6: Final answer
    x = 751,660.28

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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.