Home / 953,679.40-1,429,352.70-420,634.60

Finding the Fourth Proportional to 953,679.40, 1,429,352.70 and 420,634.60

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Solution

The fourth proportional to 953,679.40, 1,429,352.70 and 420,634.60 is: 630,437.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    953,679.40 : 1,429,352.70 = 420,634.60 : x
  2. Step 2: Convert to fraction form
    953,679.40/1,429,352.70 = 420,634.60/x
  3. Step 3: Cross multiply
    953,679.40x = 1,429,352.70 × 420,634.60
  4. Step 4: Simplify right side
    953,679.40x = 601,235,201,223.42
  5. Step 5: Solve for x
    x = 601,235,201,223.42/953,679.40
  6. Step 6: Final answer
    x = 630,437.44

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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.