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Finding the Fourth Proportional to 404,810.46, 606,973.77 and 138,482.46

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Solution

The fourth proportional to 404,810.46, 606,973.77 and 138,482.46 is: 207,640.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,810.46 : 606,973.77 = 138,482.46 : x
  2. Step 2: Convert to fraction form
    404,810.46/606,973.77 = 138,482.46/x
  3. Step 3: Cross multiply
    404,810.46x = 606,973.77 × 138,482.46
  4. Step 4: Simplify right side
    404,810.46x = 84,055,220,825.07
  5. Step 5: Solve for x
    x = 84,055,220,825.07/404,810.46
  6. Step 6: Final answer
    x = 207,640.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.