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Finding the Fourth Proportional to 632,483.60, 873,087.06 and 428,813.48

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Solution

The fourth proportional to 632,483.60, 873,087.06 and 428,813.48 is: 591,938.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,483.60 : 873,087.06 = 428,813.48 : x
  2. Step 2: Convert to fraction form
    632,483.60/873,087.06 = 428,813.48/x
  3. Step 3: Cross multiply
    632,483.60x = 873,087.06 × 428,813.48
  4. Step 4: Simplify right side
    632,483.60x = 374,391,500,541.57
  5. Step 5: Solve for x
    x = 374,391,500,541.57/632,483.60
  6. Step 6: Final answer
    x = 591,938.67

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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.