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Finding the Fourth Proportional to 533,745.91, 736,496.61 and 318,840.36

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Solution

The fourth proportional to 533,745.91, 736,496.61 and 318,840.36 is: 439,956.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    533,745.91 : 736,496.61 = 318,840.36 : x
  2. Step 2: Convert to fraction form
    533,745.91/736,496.61 = 318,840.36/x
  3. Step 3: Cross multiply
    533,745.91x = 736,496.61 × 318,840.36
  4. Step 4: Simplify right side
    533,745.91x = 234,824,844,271.18
  5. Step 5: Solve for x
    x = 234,824,844,271.18/533,745.91
  6. Step 6: Final answer
    x = 439,956.24

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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.