Home / 1,276,921.41-1,915,389.05-378,370.93

Finding the Fourth Proportional to 1,276,921.41, 1,915,389.05 and 378,370.93

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Solution

The fourth proportional to 1,276,921.41, 1,915,389.05 and 378,370.93 is: 567,558.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,276,921.41 : 1,915,389.05 = 378,370.93 : x
  2. Step 2: Convert to fraction form
    1,276,921.41/1,915,389.05 = 378,370.93/x
  3. Step 3: Cross multiply
    1,276,921.41x = 1,915,389.05 × 378,370.93
  4. Step 4: Simplify right side
    1,276,921.41x = 724,727,533,071.34
  5. Step 5: Solve for x
    x = 724,727,533,071.34/1,276,921.41
  6. Step 6: Final answer
    x = 567,558.45

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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.