Home / 889,926.72-1,228,082.40-487,515.84

Finding the Fourth Proportional to 889,926.72, 1,228,082.40 and 487,515.84

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Solution

The fourth proportional to 889,926.72, 1,228,082.40 and 487,515.84 is: 672,762.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    889,926.72 : 1,228,082.40 = 487,515.84 : x
  2. Step 2: Convert to fraction form
    889,926.72/1,228,082.40 = 487,515.84/x
  3. Step 3: Cross multiply
    889,926.72x = 1,228,082.40 × 487,515.84
  4. Step 4: Simplify right side
    889,926.72x = 598,709,622,825.22
  5. Step 5: Solve for x
    x = 598,709,622,825.22/889,926.72
  6. Step 6: Final answer
    x = 672,762.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.