Home / 926,489.40-1,389,734.10-912,492.60

Finding the Fourth Proportional to 926,489.40, 1,389,734.10 and 912,492.60

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Solution

The fourth proportional to 926,489.40, 1,389,734.10 and 912,492.60 is: 1,368,738.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    926,489.40 : 1,389,734.10 = 912,492.60 : x
  2. Step 2: Convert to fraction form
    926,489.40/1,389,734.10 = 912,492.60/x
  3. Step 3: Cross multiply
    926,489.40x = 1,389,734.10 × 912,492.60
  4. Step 4: Simplify right side
    926,489.40x = 1,268,122,082,217.66
  5. Step 5: Solve for x
    x = 1,268,122,082,217.66/926,489.40
  6. Step 6: Final answer
    x = 1,368,738.90

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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.