Home / 727,402.83-1,003,847.02-405,112.88

Finding the Fourth Proportional to 727,402.83, 1,003,847.02 and 405,112.88

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Solution

The fourth proportional to 727,402.83, 1,003,847.02 and 405,112.88 is: 559,073.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    727,402.83 : 1,003,847.02 = 405,112.88 : x
  2. Step 2: Convert to fraction form
    727,402.83/1,003,847.02 = 405,112.88/x
  3. Step 3: Cross multiply
    727,402.83x = 1,003,847.02 × 405,112.88
  4. Step 4: Simplify right side
    727,402.83x = 406,671,357,351.62
  5. Step 5: Solve for x
    x = 406,671,357,351.62/727,402.83
  6. Step 6: Final answer
    x = 559,073.10

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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.