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Finding the Fourth Proportional to 575,802.78, 794,589.39 and 317,679.54

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Solution

The fourth proportional to 575,802.78, 794,589.39 and 317,679.54 is: 438,387.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,802.78 : 794,589.39 = 317,679.54 : x
  2. Step 2: Convert to fraction form
    575,802.78/794,589.39 = 317,679.54/x
  3. Step 3: Cross multiply
    575,802.78x = 794,589.39 × 317,679.54
  4. Step 4: Simplify right side
    575,802.78x = 252,424,791,904.08
  5. Step 5: Solve for x
    x = 252,424,791,904.08/575,802.78
  6. Step 6: Final answer
    x = 438,387.59

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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.