Home / 1,285,055.57-1,927,678.94-386,425.37

Finding the Fourth Proportional to 1,285,055.57, 1,927,678.94 and 386,425.37

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Solution

The fourth proportional to 1,285,055.57, 1,927,678.94 and 386,425.37 is: 579,666.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,285,055.57 : 1,927,678.94 = 386,425.37 : x
  2. Step 2: Convert to fraction form
    1,285,055.57/1,927,678.94 = 386,425.37/x
  3. Step 3: Cross multiply
    1,285,055.57x = 1,927,678.94 × 386,425.37
  4. Step 4: Simplify right side
    1,285,055.57x = 744,904,047,630.71
  5. Step 5: Solve for x
    x = 744,904,047,630.71/1,285,055.57
  6. Step 6: Final answer
    x = 579,666.80

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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.