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Finding the Fourth Proportional to 614,464.02, 920,479.50 and 289,807.52

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Solution

The fourth proportional to 614,464.02, 920,479.50 and 289,807.52 is: 434,137.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    614,464.02 : 920,479.50 = 289,807.52 : x
  2. Step 2: Convert to fraction form
    614,464.02/920,479.50 = 289,807.52/x
  3. Step 3: Cross multiply
    614,464.02x = 920,479.50 × 289,807.52
  4. Step 4: Simplify right side
    614,464.02x = 266,761,876,503.44
  5. Step 5: Solve for x
    x = 266,761,876,503.44/614,464.02
  6. Step 6: Final answer
    x = 434,137.50

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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.