Home / 929,613.40-1,394,420.10-890,247.40

Finding the Fourth Proportional to 929,613.40, 1,394,420.10 and 890,247.40

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Solution

The fourth proportional to 929,613.40, 1,394,420.10 and 890,247.40 is: 1,335,371.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,613.40 : 1,394,420.10 = 890,247.40 : x
  2. Step 2: Convert to fraction form
    929,613.40/1,394,420.10 = 890,247.40/x
  3. Step 3: Cross multiply
    929,613.40x = 1,394,420.10 × 890,247.40
  4. Step 4: Simplify right side
    929,613.40x = 1,241,378,868,532.74
  5. Step 5: Solve for x
    x = 1,241,378,868,532.74/929,613.40
  6. Step 6: Final answer
    x = 1,335,371.10

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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.