Home / 785,345.79-1,083,748.35-479,933.28

Finding the Fourth Proportional to 785,345.79, 1,083,748.35 and 479,933.28

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Solution

The fourth proportional to 785,345.79, 1,083,748.35 and 479,933.28 is: 662,290.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,345.79 : 1,083,748.35 = 479,933.28 : x
  2. Step 2: Convert to fraction form
    785,345.79/1,083,748.35 = 479,933.28/x
  3. Step 3: Cross multiply
    785,345.79x = 1,083,748.35 × 479,933.28
  4. Step 4: Simplify right side
    785,345.79x = 520,126,900,310.09
  5. Step 5: Solve for x
    x = 520,126,900,310.09/785,345.79
  6. Step 6: Final answer
    x = 662,290.30

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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.