Home / 782,329.71-1,079,577.66-480,465.39

Finding the Fourth Proportional to 782,329.71, 1,079,577.66 and 480,465.39

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Solution

The fourth proportional to 782,329.71, 1,079,577.66 and 480,465.39 is: 663,019.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,329.71 : 1,079,577.66 = 480,465.39 : x
  2. Step 2: Convert to fraction form
    782,329.71/1,079,577.66 = 480,465.39/x
  3. Step 3: Cross multiply
    782,329.71x = 1,079,577.66 × 480,465.39
  4. Step 4: Simplify right side
    782,329.71x = 518,699,701,447.19
  5. Step 5: Solve for x
    x = 518,699,701,447.19/782,329.71
  6. Step 6: Final answer
    x = 663,019.31

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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.