Home / 1,678,020.21-2,315,656.04-914,073.80

Finding the Fourth Proportional to 1,678,020.21, 2,315,656.04 and 914,073.80

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Solution

The fourth proportional to 1,678,020.21, 2,315,656.04 and 914,073.80 is: 1,261,415.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,020.21 : 2,315,656.04 = 914,073.80 : x
  2. Step 2: Convert to fraction form
    1,678,020.21/2,315,656.04 = 914,073.80/x
  3. Step 3: Cross multiply
    1,678,020.21x = 2,315,656.04 × 914,073.80
  4. Step 4: Simplify right side
    1,678,020.21x = 2,116,680,499,827.10
  5. Step 5: Solve for x
    x = 2,116,680,499,827.10/1,678,020.21
  6. Step 6: Final answer
    x = 1,261,415.38

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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.