Home / 1,076,455.19-1,487,114.30-869,414.65

Finding the Fourth Proportional to 1,076,455.19, 1,487,114.30 and 869,414.65

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Solution

The fourth proportional to 1,076,455.19, 1,487,114.30 and 869,414.65 is: 1,201,089.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,076,455.19 : 1,487,114.30 = 869,414.65 : x
  2. Step 2: Convert to fraction form
    1,076,455.19/1,487,114.30 = 869,414.65/x
  3. Step 3: Cross multiply
    1,076,455.19x = 1,487,114.30 × 869,414.65
  4. Step 4: Simplify right side
    1,076,455.19x = 1,292,918,958,644.50
  5. Step 5: Solve for x
    x = 1,292,918,958,644.50/1,076,455.19
  6. Step 6: Final answer
    x = 1,201,089.44

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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.