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Finding the Fourth Proportional to 525,236.40, 724,796.51 and 310,396.46

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Solution

The fourth proportional to 525,236.40, 724,796.51 and 310,396.46 is: 428,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,236.40 : 724,796.51 = 310,396.46 : x
  2. Step 2: Convert to fraction form
    525,236.40/724,796.51 = 310,396.46/x
  3. Step 3: Cross multiply
    525,236.40x = 724,796.51 × 310,396.46
  4. Step 4: Simplify right side
    525,236.40x = 224,974,265,748.39
  5. Step 5: Solve for x
    x = 224,974,265,748.39/525,236.40
  6. Step 6: Final answer
    x = 428,329.54

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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.