Home / 727,420.44-1,003,871.36-405,130.52

Finding the Fourth Proportional to 727,420.44, 1,003,871.36 and 405,130.52

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Solution

The fourth proportional to 727,420.44, 1,003,871.36 and 405,130.52 is: 559,097.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,420.44 : 1,003,871.36 = 405,130.52 : x
  2. Step 2: Convert to fraction form
    727,420.44/1,003,871.36 = 405,130.52/x
  3. Step 3: Cross multiply
    727,420.44x = 1,003,871.36 × 405,130.52
  4. Step 4: Simplify right side
    727,420.44x = 406,698,926,089.91
  5. Step 5: Solve for x
    x = 406,698,926,089.91/727,420.44
  6. Step 6: Final answer
    x = 559,097.47

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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.