Home / 935,688.30-1,291,249.91-505,968.43

Finding the Fourth Proportional to 935,688.30, 1,291,249.91 and 505,968.43

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Solution

The fourth proportional to 935,688.30, 1,291,249.91 and 505,968.43 is: 698,236.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,688.30 : 1,291,249.91 = 505,968.43 : x
  2. Step 2: Convert to fraction form
    935,688.30/1,291,249.91 = 505,968.43/x
  3. Step 3: Cross multiply
    935,688.30x = 1,291,249.91 × 505,968.43
  4. Step 4: Simplify right side
    935,688.30x = 653,331,688,220.08
  5. Step 5: Solve for x
    x = 653,331,688,220.08/935,688.30
  6. Step 6: Final answer
    x = 698,236.46

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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.