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Finding the Fourth Proportional to 648,284.58, 894,877.90 and 487,603.64

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Solution

The fourth proportional to 648,284.58, 894,877.90 and 487,603.64 is: 673,077.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,284.58 : 894,877.90 = 487,603.64 : x
  2. Step 2: Convert to fraction form
    648,284.58/894,877.90 = 487,603.64/x
  3. Step 3: Cross multiply
    648,284.58x = 894,877.90 × 487,603.64
  4. Step 4: Simplify right side
    648,284.58x = 436,345,715,702.16
  5. Step 5: Solve for x
    x = 436,345,715,702.16/648,284.58
  6. Step 6: Final answer
    x = 673,077.43

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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.