Home / 1,285,381.37-1,925,968.39-780,097.23

Finding the Fourth Proportional to 1,285,381.37, 1,925,968.39 and 780,097.23

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Solution

The fourth proportional to 1,285,381.37, 1,925,968.39 and 780,097.23 is: 1,168,869.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,381.37 : 1,925,968.39 = 780,097.23 : x
  2. Step 2: Convert to fraction form
    1,285,381.37/1,925,968.39 = 780,097.23/x
  3. Step 3: Cross multiply
    1,285,381.37x = 1,925,968.39 × 780,097.23
  4. Step 4: Simplify right side
    1,285,381.37x = 1,502,442,604,156.32
  5. Step 5: Solve for x
    x = 1,502,442,604,156.32/1,285,381.37
  6. Step 6: Final answer
    x = 1,168,869.13

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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.