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Finding the Fourth Proportional to 534,362.90, 737,421.91 and 289,350.32

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Solution

The fourth proportional to 534,362.90, 737,421.91 and 289,350.32 is: 399,304.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,362.90 : 737,421.91 = 289,350.32 : x
  2. Step 2: Convert to fraction form
    534,362.90/737,421.91 = 289,350.32/x
  3. Step 3: Cross multiply
    534,362.90x = 737,421.91 × 289,350.32
  4. Step 4: Simplify right side
    534,362.90x = 213,373,261,223.03
  5. Step 5: Solve for x
    x = 213,373,261,223.03/534,362.90
  6. Step 6: Final answer
    x = 399,304.04

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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.