Home / 935,531.79-1,291,035.71-505,811.92

Finding the Fourth Proportional to 935,531.79, 1,291,035.71 and 505,811.92

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Solution

The fourth proportional to 935,531.79, 1,291,035.71 and 505,811.92 is: 698,021.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    935,531.79 : 1,291,035.71 = 505,811.92 : x
  2. Step 2: Convert to fraction form
    935,531.79/1,291,035.71 = 505,811.92/x
  3. Step 3: Cross multiply
    935,531.79x = 1,291,035.71 × 505,811.92
  4. Step 4: Simplify right side
    935,531.79x = 653,021,253,059.28
  5. Step 5: Solve for x
    x = 653,021,253,059.28/935,531.79
  6. Step 6: Final answer
    x = 698,021.44

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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.