Home / 1,438,614-1,985,287.32-802,710

Finding the Fourth Proportional to 1,438,614, 1,985,287.32 and 802,710

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Solution

The fourth proportional to 1,438,614, 1,985,287.32 and 802,710 is: 1,107,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,614 : 1,985,287.32 = 802,710 : x
  2. Step 2: Convert to fraction form
    1,438,614/1,985,287.32 = 802,710/x
  3. Step 3: Cross multiply
    1,438,614x = 1,985,287.32 × 802,710
  4. Step 4: Simplify right side
    1,438,614x = 1,593,609,984,637.20
  5. Step 5: Solve for x
    x = 1,593,609,984,637.20/1,438,614
  6. Step 6: Final answer
    x = 1,107,739.80

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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.