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Finding the Fourth Proportional to 562,367.81, 776,067.58 and 307,719

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Solution

The fourth proportional to 562,367.81, 776,067.58 and 307,719 is: 424,652.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,367.81 : 776,067.58 = 307,719 : x
  2. Step 2: Convert to fraction form
    562,367.81/776,067.58 = 307,719/x
  3. Step 3: Cross multiply
    562,367.81x = 776,067.58 × 307,719
  4. Step 4: Simplify right side
    562,367.81x = 238,810,740,034.67
  5. Step 5: Solve for x
    x = 238,810,740,034.67/562,367.81
  6. Step 6: Final answer
    x = 424,652.22

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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.