Home / 1,405,221.39-1,939,210.35-760,641.39

Finding the Fourth Proportional to 1,405,221.39, 1,939,210.35 and 760,641.39

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Solution

The fourth proportional to 1,405,221.39, 1,939,210.35 and 760,641.39 is: 1,049,687.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,221.39 : 1,939,210.35 = 760,641.39 : x
  2. Step 2: Convert to fraction form
    1,405,221.39/1,939,210.35 = 760,641.39/x
  3. Step 3: Cross multiply
    1,405,221.39x = 1,939,210.35 × 760,641.39
  4. Step 4: Simplify right side
    1,405,221.39x = 1,475,043,656,126.39
  5. Step 5: Solve for x
    x = 1,475,043,656,126.39/1,405,221.39
  6. Step 6: Final answer
    x = 1,049,687.73

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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.