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Finding the Fourth Proportional to 449,475, 620,277.60 and 245,528.75

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Solution

The fourth proportional to 449,475, 620,277.60 and 245,528.75 is: 338,830.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,475 : 620,277.60 = 245,528.75 : x
  2. Step 2: Convert to fraction form
    449,475/620,277.60 = 245,528.75/x
  3. Step 3: Cross multiply
    449,475x = 620,277.60 × 245,528.75
  4. Step 4: Simplify right side
    449,475x = 152,295,980,679.61
  5. Step 5: Solve for x
    x = 152,295,980,679.61/449,475
  6. Step 6: Final answer
    x = 338,830.82

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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.