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Finding the Fourth Proportional to 911,909.31, 1,258,500 and 504,002.37

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Solution

The fourth proportional to 911,909.31, 1,258,500 and 504,002.37 is: 695,559.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    911,909.31 : 1,258,500 = 504,002.37 : x
  2. Step 2: Convert to fraction form
    911,909.31/1,258,500 = 504,002.37/x
  3. Step 3: Cross multiply
    911,909.31x = 1,258,500 × 504,002.37
  4. Step 4: Simplify right side
    911,909.31x = 634,286,982,645
  5. Step 5: Solve for x
    x = 634,286,982,645/911,909.31
  6. Step 6: Final answer
    x = 695,559.28

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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.