Home / 830,433.42-1,138,523.28-815,299.38

Finding the Fourth Proportional to 830,433.42, 1,138,523.28 and 815,299.38

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Solution

The fourth proportional to 830,433.42, 1,138,523.28 and 815,299.38 is: 1,117,774.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,433.42 : 1,138,523.28 = 815,299.38 : x
  2. Step 2: Convert to fraction form
    830,433.42/1,138,523.28 = 815,299.38/x
  3. Step 3: Cross multiply
    830,433.42x = 1,138,523.28 × 815,299.38
  4. Step 4: Simplify right side
    830,433.42x = 928,237,324,299.57
  5. Step 5: Solve for x
    x = 928,237,324,299.57/830,433.42
  6. Step 6: Final answer
    x = 1,117,774.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.