Home / 740,663.88-1,022,179.08-418,433.10

Finding the Fourth Proportional to 740,663.88, 1,022,179.08 and 418,433.10

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Solution

The fourth proportional to 740,663.88, 1,022,179.08 and 418,433.10 is: 577,473.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,663.88 : 1,022,179.08 = 418,433.10 : x
  2. Step 2: Convert to fraction form
    740,663.88/1,022,179.08 = 418,433.10/x
  3. Step 3: Cross multiply
    740,663.88x = 1,022,179.08 × 418,433.10
  4. Step 4: Simplify right side
    740,663.88x = 427,713,561,199.55
  5. Step 5: Solve for x
    x = 427,713,561,199.55/740,663.88
  6. Step 6: Final answer
    x = 577,473.23

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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.