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Finding the Fourth Proportional to 438,528.99, 605,750.81 and 352,810.89

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Solution

The fourth proportional to 438,528.99, 605,750.81 and 352,810.89 is: 487,346.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,528.99 : 605,750.81 = 352,810.89 : x
  2. Step 2: Convert to fraction form
    438,528.99/605,750.81 = 352,810.89/x
  3. Step 3: Cross multiply
    438,528.99x = 605,750.81 × 352,810.89
  4. Step 4: Simplify right side
    438,528.99x = 213,715,480,630.27
  5. Step 5: Solve for x
    x = 213,715,480,630.27/438,528.99
  6. Step 6: Final answer
    x = 487,346.30

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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.