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Finding the Fourth Proportional to 534,458.58, 737,551.70 and 289,442.55

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Solution

The fourth proportional to 534,458.58, 737,551.70 and 289,442.55 is: 399,430.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    534,458.58 : 737,551.70 = 289,442.55 : x
  2. Step 2: Convert to fraction form
    534,458.58/737,551.70 = 289,442.55/x
  3. Step 3: Cross multiply
    534,458.58x = 737,551.70 × 289,442.55
  4. Step 4: Simplify right side
    534,458.58x = 213,478,848,294.26
  5. Step 5: Solve for x
    x = 213,478,848,294.26/534,458.58
  6. Step 6: Final answer
    x = 399,430.11

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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.