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Finding the Fourth Proportional to 497,840.76, 687,018.96 and 271,486.32

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Solution

The fourth proportional to 497,840.76, 687,018.96 and 271,486.32 is: 374,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    497,840.76 : 687,018.96 = 271,486.32 : x
  2. Step 2: Convert to fraction form
    497,840.76/687,018.96 = 271,486.32/x
  3. Step 3: Cross multiply
    497,840.76x = 687,018.96 × 271,486.32
  4. Step 4: Simplify right side
    497,840.76x = 186,516,249,220.63
  5. Step 5: Solve for x
    x = 186,516,249,220.63/497,840.76
  6. Step 6: Final answer
    x = 374,650.42

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1.5x scale

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.