Home / 1,276,873.41-1,915,590.33-378,385.47

Finding the Fourth Proportional to 1,276,873.41, 1,915,590.33 and 378,385.47

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Solution

The fourth proportional to 1,276,873.41, 1,915,590.33 and 378,385.47 is: 567,661.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,873.41 : 1,915,590.33 = 378,385.47 : x
  2. Step 2: Convert to fraction form
    1,276,873.41/1,915,590.33 = 378,385.47/x
  3. Step 3: Cross multiply
    1,276,873.41x = 1,915,590.33 × 378,385.47
  4. Step 4: Simplify right side
    1,276,873.41x = 724,831,547,344.51
  5. Step 5: Solve for x
    x = 724,831,547,344.51/1,276,873.41
  6. Step 6: Final answer
    x = 567,661.24

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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.