Home / 689,610.51-1,034,405.30-310,263.35

Finding the Fourth Proportional to 689,610.51, 1,034,405.30 and 310,263.35

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Solution

The fourth proportional to 689,610.51, 1,034,405.30 and 310,263.35 is: 465,390.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,610.51 : 1,034,405.30 = 310,263.35 : x
  2. Step 2: Convert to fraction form
    689,610.51/1,034,405.30 = 310,263.35/x
  3. Step 3: Cross multiply
    689,610.51x = 1,034,405.30 × 310,263.35
  4. Step 4: Simplify right side
    689,610.51x = 320,938,049,239.39
  5. Step 5: Solve for x
    x = 320,938,049,239.39/689,610.51
  6. Step 6: Final answer
    x = 465,390.31

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.