Home / 664,851.51-996,587.55-309,573.36

Finding the Fourth Proportional to 664,851.51, 996,587.55 and 309,573.36

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Solution

The fourth proportional to 664,851.51, 996,587.55 and 309,573.36 is: 464,038.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,851.51 : 996,587.55 = 309,573.36 : x
  2. Step 2: Convert to fraction form
    664,851.51/996,587.55 = 309,573.36/x
  3. Step 3: Cross multiply
    664,851.51x = 996,587.55 × 309,573.36
  4. Step 4: Simplify right side
    664,851.51x = 308,516,956,387.67
  5. Step 5: Solve for x
    x = 308,516,956,387.67/664,851.51
  6. Step 6: Final answer
    x = 464,038.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.