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Finding the Fourth Proportional to 638,522.16, 881,200.08 and 352,041.60

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Solution

The fourth proportional to 638,522.16, 881,200.08 and 352,041.60 is: 485,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    638,522.16 : 881,200.08 = 352,041.60 : x
  2. Step 2: Convert to fraction form
    638,522.16/881,200.08 = 352,041.60/x
  3. Step 3: Cross multiply
    638,522.16x = 881,200.08 × 352,041.60
  4. Step 4: Simplify right side
    638,522.16x = 310,219,086,083.33
  5. Step 5: Solve for x
    x = 310,219,086,083.33/638,522.16
  6. Step 6: Final answer
    x = 485,839.19

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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.