Home / 676,039.64-932,947.26-389,511.32

Finding the Fourth Proportional to 676,039.64, 932,947.26 and 389,511.32

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Solution

The fourth proportional to 676,039.64, 932,947.26 and 389,511.32 is: 537,532.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,039.64 : 932,947.26 = 389,511.32 : x
  2. Step 2: Convert to fraction form
    676,039.64/932,947.26 = 389,511.32/x
  3. Step 3: Cross multiply
    676,039.64x = 932,947.26 × 389,511.32
  4. Step 4: Simplify right side
    676,039.64x = 363,393,518,732.98
  5. Step 5: Solve for x
    x = 363,393,518,732.98/676,039.64
  6. Step 6: Final answer
    x = 537,532.86

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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.