Home / 905,427.60-1,249,416.94-523,479

Finding the Fourth Proportional to 905,427.60, 1,249,416.94 and 523,479

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Solution

The fourth proportional to 905,427.60, 1,249,416.94 and 523,479 is: 722,358.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    905,427.60 : 1,249,416.94 = 523,479 : x
  2. Step 2: Convert to fraction form
    905,427.60/1,249,416.94 = 523,479/x
  3. Step 3: Cross multiply
    905,427.60x = 1,249,416.94 × 523,479
  4. Step 4: Simplify right side
    905,427.60x = 654,043,530,334.26
  5. Step 5: Solve for x
    x = 654,043,530,334.26/905,427.60
  6. Step 6: Final answer
    x = 722,358.73

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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.