Home / 1,405,402.51-1,939,456.12-760,822.71

Finding the Fourth Proportional to 1,405,402.51, 1,939,456.12 and 760,822.71

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Solution

The fourth proportional to 1,405,402.51, 1,939,456.12 and 760,822.71 is: 1,049,935.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,402.51 : 1,939,456.12 = 760,822.71 : x
  2. Step 2: Convert to fraction form
    1,405,402.51/1,939,456.12 = 760,822.71/x
  3. Step 3: Cross multiply
    1,405,402.51x = 1,939,456.12 × 760,822.71
  4. Step 4: Simplify right side
    1,405,402.51x = 1,475,582,250,496.18
  5. Step 5: Solve for x
    x = 1,475,582,250,496.18/1,405,402.51
  6. Step 6: Final answer
    x = 1,049,935.69

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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.