Home / 1,326,348.39-1,989,520.09-415,600.58

Finding the Fourth Proportional to 1,326,348.39, 1,989,520.09 and 415,600.58

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Solution

The fourth proportional to 1,326,348.39, 1,989,520.09 and 415,600.58 is: 623,400.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,326,348.39 : 1,989,520.09 = 415,600.58 : x
  2. Step 2: Convert to fraction form
    1,326,348.39/1,989,520.09 = 415,600.58/x
  3. Step 3: Cross multiply
    1,326,348.39x = 1,989,520.09 × 415,600.58
  4. Step 4: Simplify right side
    1,326,348.39x = 826,845,703,325.65
  5. Step 5: Solve for x
    x = 826,845,703,325.65/1,326,348.39
  6. Step 6: Final answer
    x = 623,400.09

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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.