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Finding the Fourth Proportional to 455,878.16, 683,602.59 and 266,393.29

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Solution

The fourth proportional to 455,878.16, 683,602.59 and 266,393.29 is: 399,464.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,878.16 : 683,602.59 = 266,393.29 : x
  2. Step 2: Convert to fraction form
    455,878.16/683,602.59 = 266,393.29/x
  3. Step 3: Cross multiply
    455,878.16x = 683,602.59 × 266,393.29
  4. Step 4: Simplify right side
    455,878.16x = 182,107,143,002.62
  5. Step 5: Solve for x
    x = 182,107,143,002.62/455,878.16
  6. Step 6: Final answer
    x = 399,464.50

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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.