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Finding the Fourth Proportional to 449,532.60, 620,356.23 and 245,585.40

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Solution

The fourth proportional to 449,532.60, 620,356.23 and 245,585.40 is: 338,908.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,532.60 : 620,356.23 = 245,585.40 : x
  2. Step 2: Convert to fraction form
    449,532.60/620,356.23 = 245,585.40/x
  3. Step 3: Cross multiply
    449,532.60x = 620,356.23 × 245,585.40
  4. Step 4: Simplify right side
    449,532.60x = 152,350,432,887.04
  5. Step 5: Solve for x
    x = 152,350,432,887.04/449,532.60
  6. Step 6: Final answer
    x = 338,908.53

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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.