Home / 690,045.60-1,035,457.20-269,266.80

Finding the Fourth Proportional to 690,045.60, 1,035,457.20 and 269,266.80

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Solution

The fourth proportional to 690,045.60, 1,035,457.20 and 269,266.80 is: 404,051.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,045.60 : 1,035,457.20 = 269,266.80 : x
  2. Step 2: Convert to fraction form
    690,045.60/1,035,457.20 = 269,266.80/x
  3. Step 3: Cross multiply
    690,045.60x = 1,035,457.20 × 269,266.80
  4. Step 4: Simplify right side
    690,045.60x = 278,814,246,780.96
  5. Step 5: Solve for x
    x = 278,814,246,780.96/690,045.60
  6. Step 6: Final answer
    x = 404,051.92

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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.