Home / 840,755.09-1,160,270.12-458,802.83

Finding the Fourth Proportional to 840,755.09, 1,160,270.12 and 458,802.83

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Solution

The fourth proportional to 840,755.09, 1,160,270.12 and 458,802.83 is: 633,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,755.09 : 1,160,270.12 = 458,802.83 : x
  2. Step 2: Convert to fraction form
    840,755.09/1,160,270.12 = 458,802.83/x
  3. Step 3: Cross multiply
    840,755.09x = 1,160,270.12 × 458,802.83
  4. Step 4: Simplify right side
    840,755.09x = 532,335,218,668.12
  5. Step 5: Solve for x
    x = 532,335,218,668.12/840,755.09
  6. Step 6: Final answer
    x = 633,163.24

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1.5x scale

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.