Home / 740,633.89-1,022,157.89-418,364.75

Finding the Fourth Proportional to 740,633.89, 1,022,157.89 and 418,364.75

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Solution

The fourth proportional to 740,633.89, 1,022,157.89 and 418,364.75 is: 577,390.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,633.89 : 1,022,157.89 = 418,364.75 : x
  2. Step 2: Convert to fraction form
    740,633.89/1,022,157.89 = 418,364.75/x
  3. Step 3: Cross multiply
    740,633.89x = 1,022,157.89 × 418,364.75
  4. Step 4: Simplify right side
    740,633.89x = 427,634,824,999.59
  5. Step 5: Solve for x
    x = 427,634,824,999.59/740,633.89
  6. Step 6: Final answer
    x = 577,390.30

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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.