Home / 788,489.16-1,088,114.89-425,913.03

Finding the Fourth Proportional to 788,489.16, 1,088,114.89 and 425,913.03

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Solution

The fourth proportional to 788,489.16, 1,088,114.89 and 425,913.03 is: 587,759.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    788,489.16 : 1,088,114.89 = 425,913.03 : x
  2. Step 2: Convert to fraction form
    788,489.16/1,088,114.89 = 425,913.03/x
  3. Step 3: Cross multiply
    788,489.16x = 1,088,114.89 × 425,913.03
  4. Step 4: Simplify right side
    788,489.16x = 463,442,309,788.02
  5. Step 5: Solve for x
    x = 463,442,309,788.02/788,489.16
  6. Step 6: Final answer
    x = 587,759.90

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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.