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Finding the Fourth Proportional to 425,485.19, 587,363.60 and 303,056.39

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Solution

The fourth proportional to 425,485.19, 587,363.60 and 303,056.39 is: 418,356.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,485.19 : 587,363.60 = 303,056.39 : x
  2. Step 2: Convert to fraction form
    425,485.19/587,363.60 = 303,056.39/x
  3. Step 3: Cross multiply
    425,485.19x = 587,363.60 × 303,056.39
  4. Step 4: Simplify right side
    425,485.19x = 178,004,290,718.12
  5. Step 5: Solve for x
    x = 178,004,290,718.12/425,485.19
  6. Step 6: Final answer
    x = 418,356.02

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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.