Home / 718,702.94-1,078,767.72-381,746.39

Finding the Fourth Proportional to 718,702.94, 1,078,767.72 and 381,746.39

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Solution

The fourth proportional to 718,702.94, 1,078,767.72 and 381,746.39 is: 572,998.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,702.94 : 1,078,767.72 = 381,746.39 : x
  2. Step 2: Convert to fraction form
    718,702.94/1,078,767.72 = 381,746.39/x
  3. Step 3: Cross multiply
    718,702.94x = 1,078,767.72 × 381,746.39
  4. Step 4: Simplify right side
    718,702.94x = 411,815,677,364.69
  5. Step 5: Solve for x
    x = 411,815,677,364.69/718,702.94
  6. Step 6: Final answer
    x = 572,998.46

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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.