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Finding the Fourth Proportional to 988,337, 1,363,909.94 and 535,628

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Solution

The fourth proportional to 988,337, 1,363,909.94 and 535,628 is: 739,169.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,337 : 1,363,909.94 = 535,628 : x
  2. Step 2: Convert to fraction form
    988,337/1,363,909.94 = 535,628/x
  3. Step 3: Cross multiply
    988,337x = 1,363,909.94 × 535,628
  4. Step 4: Simplify right side
    988,337x = 730,548,353,342.32
  5. Step 5: Solve for x
    x = 730,548,353,342.32/988,337
  6. Step 6: Final answer
    x = 739,169.28

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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.