Home / 740,862.72-1,022,382.72-418,587.84

Finding the Fourth Proportional to 740,862.72, 1,022,382.72 and 418,587.84

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Solution

The fourth proportional to 740,862.72, 1,022,382.72 and 418,587.84 is: 577,646.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    740,862.72 : 1,022,382.72 = 418,587.84 : x
  2. Step 2: Convert to fraction form
    740,862.72/1,022,382.72 = 418,587.84/x
  3. Step 3: Cross multiply
    740,862.72x = 1,022,382.72 × 418,587.84
  4. Step 4: Simplify right side
    740,862.72x = 427,956,974,418.13
  5. Step 5: Solve for x
    x = 427,956,974,418.13/740,862.72
  6. Step 6: Final answer
    x = 577,646.79

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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.