Home / 1,405,384.91-1,939,430.75-760,804.63

Finding the Fourth Proportional to 1,405,384.91, 1,939,430.75 and 760,804.63

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Solution

The fourth proportional to 1,405,384.91, 1,939,430.75 and 760,804.63 is: 1,049,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,405,384.91 : 1,939,430.75 = 760,804.63 : x
  2. Step 2: Convert to fraction form
    1,405,384.91/1,939,430.75 = 760,804.63/x
  3. Step 3: Cross multiply
    1,405,384.91x = 1,939,430.75 × 760,804.63
  4. Step 4: Simplify right side
    1,405,384.91x = 1,475,527,885,511.77
  5. Step 5: Solve for x
    x = 1,475,527,885,511.77/1,405,384.91
  6. Step 6: Final answer
    x = 1,049,910.16

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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.