Home / 1,405,383.72-1,939,430.17-760,803.91

Finding the Fourth Proportional to 1,405,383.72, 1,939,430.17 and 760,803.91

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Solution

The fourth proportional to 1,405,383.72, 1,939,430.17 and 760,803.91 is: 1,049,909.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,383.72 : 1,939,430.17 = 760,803.91 : x
  2. Step 2: Convert to fraction form
    1,405,383.72/1,939,430.17 = 760,803.91/x
  3. Step 3: Cross multiply
    1,405,383.72x = 1,939,430.17 × 760,803.91
  4. Step 4: Simplify right side
    1,405,383.72x = 1,475,526,056,507.96
  5. Step 5: Solve for x
    x = 1,475,526,056,507.96/1,405,383.72
  6. Step 6: Final answer
    x = 1,049,909.74

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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.