Home / 690,245.70-1,034,752.95-269,423.70

Finding the Fourth Proportional to 690,245.70, 1,034,752.95 and 269,423.70

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Solution

The fourth proportional to 690,245.70, 1,034,752.95 and 269,423.70 is: 403,895.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,245.70 : 1,034,752.95 = 269,423.70 : x
  2. Step 2: Convert to fraction form
    690,245.70/1,034,752.95 = 269,423.70/x
  3. Step 3: Cross multiply
    690,245.70x = 1,034,752.95 × 269,423.70
  4. Step 4: Simplify right side
    690,245.70x = 278,786,968,374.92
  5. Step 5: Solve for x
    x = 278,786,968,374.92/690,245.70
  6. Step 6: Final answer
    x = 403,895.26

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1.5x scale

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.