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Finding the Fourth Proportional to 536,431.50, 740,288.51 and 294,729.72

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Solution

The fourth proportional to 536,431.50, 740,288.51 and 294,729.72 is: 406,734.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    536,431.50 : 740,288.51 = 294,729.72 : x
  2. Step 2: Convert to fraction form
    536,431.50/740,288.51 = 294,729.72/x
  3. Step 3: Cross multiply
    536,431.50x = 740,288.51 × 294,729.72
  4. Step 4: Simplify right side
    536,431.50x = 218,185,023,797.87
  5. Step 5: Solve for x
    x = 218,185,023,797.87/536,431.50
  6. Step 6: Final answer
    x = 406,734.18

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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.