Home / 970,658.45-1,339,114.10-644,125.44

Finding the Fourth Proportional to 970,658.45, 1,339,114.10 and 644,125.44

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Solution

The fourth proportional to 970,658.45, 1,339,114.10 and 644,125.44 is: 888,631.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    970,658.45 : 1,339,114.10 = 644,125.44 : x
  2. Step 2: Convert to fraction form
    970,658.45/1,339,114.10 = 644,125.44/x
  3. Step 3: Cross multiply
    970,658.45x = 1,339,114.10 × 644,125.44
  4. Step 4: Simplify right side
    970,658.45x = 862,557,455,652.08
  5. Step 5: Solve for x
    x = 862,557,455,652.08/970,658.45
  6. Step 6: Final answer
    x = 888,631.28

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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.