Home / 1,679,358.52-2,515,345.44-1,387,866.57

Finding the Fourth Proportional to 1,679,358.52, 2,515,345.44 and 1,387,866.57

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Solution

The fourth proportional to 1,679,358.52, 2,515,345.44 and 1,387,866.57 is: 2,078,748.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,679,358.52 : 2,515,345.44 = 1,387,866.57 : x
  2. Step 2: Convert to fraction form
    1,679,358.52/2,515,345.44 = 1,387,866.57/x
  3. Step 3: Cross multiply
    1,679,358.52x = 2,515,345.44 × 1,387,866.57
  4. Step 4: Simplify right side
    1,679,358.52x = 3,490,963,848,177.94
  5. Step 5: Solve for x
    x = 3,490,963,848,177.94/1,679,358.52
  6. Step 6: Final answer
    x = 2,078,748.41

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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.