Home / 849,318.22-1,172,107.64-486,802.46

Finding the Fourth Proportional to 849,318.22, 1,172,107.64 and 486,802.46

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Solution

The fourth proportional to 849,318.22, 1,172,107.64 and 486,802.46 is: 671,815.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    849,318.22 : 1,172,107.64 = 486,802.46 : x
  2. Step 2: Convert to fraction form
    849,318.22/1,172,107.64 = 486,802.46/x
  3. Step 3: Cross multiply
    849,318.22x = 1,172,107.64 × 486,802.46
  4. Step 4: Simplify right side
    849,318.22x = 570,584,883,033.05
  5. Step 5: Solve for x
    x = 570,584,883,033.05/849,318.22
  6. Step 6: Final answer
    x = 671,815.19

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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.