Home / 643,194.30-887,585.64-356,741.04

Finding the Fourth Proportional to 643,194.30, 887,585.64 and 356,741.04

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Solution

The fourth proportional to 643,194.30, 887,585.64 and 356,741.04 is: 492,290.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,194.30 : 887,585.64 = 356,741.04 : x
  2. Step 2: Convert to fraction form
    643,194.30/887,585.64 = 356,741.04/x
  3. Step 3: Cross multiply
    643,194.30x = 887,585.64 × 356,741.04
  4. Step 4: Simplify right side
    643,194.30x = 316,638,224,302.67
  5. Step 5: Solve for x
    x = 316,638,224,302.67/643,194.30
  6. Step 6: Final answer
    x = 492,290.16

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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.