Home / 1,678,012.52-2,315,661.46-914,071.64

Finding the Fourth Proportional to 1,678,012.52, 2,315,661.46 and 914,071.64

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Solution

The fourth proportional to 1,678,012.52, 2,315,661.46 and 914,071.64 is: 1,261,421.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,012.52 : 2,315,661.46 = 914,071.64 : x
  2. Step 2: Convert to fraction form
    1,678,012.52/2,315,661.46 = 914,071.64/x
  3. Step 3: Cross multiply
    1,678,012.52x = 2,315,661.46 × 914,071.64
  4. Step 4: Simplify right side
    1,678,012.52x = 2,116,680,468,426.99
  5. Step 5: Solve for x
    x = 2,116,680,468,426.99/1,678,012.52
  6. Step 6: Final answer
    x = 1,261,421.14

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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.