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Finding the Fourth Proportional to 511,669.96, 705,886.74 and 375,467.28

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Solution

The fourth proportional to 511,669.96, 705,886.74 and 375,467.28 is: 517,985.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,669.96 : 705,886.74 = 375,467.28 : x
  2. Step 2: Convert to fraction form
    511,669.96/705,886.74 = 375,467.28/x
  3. Step 3: Cross multiply
    511,669.96x = 705,886.74 × 375,467.28
  4. Step 4: Simplify right side
    511,669.96x = 265,037,374,255.87
  5. Step 5: Solve for x
    x = 265,037,374,255.87/511,669.96
  6. Step 6: Final answer
    x = 517,985.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.