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Finding the Fourth Proportional to 607,779.15, 911,826.34 and 323,235.71

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Solution

The fourth proportional to 607,779.15, 911,826.34 and 323,235.71 is: 484,937.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,779.15 : 911,826.34 = 323,235.71 : x
  2. Step 2: Convert to fraction form
    607,779.15/911,826.34 = 323,235.71/x
  3. Step 3: Cross multiply
    607,779.15x = 911,826.34 × 323,235.71
  4. Step 4: Simplify right side
    607,779.15x = 294,734,839,405.95
  5. Step 5: Solve for x
    x = 294,734,839,405.95/607,779.15
  6. Step 6: Final answer
    x = 484,937.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.