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Finding the Fourth Proportional to 722,483.47, 997,027.28 and 400,214.44

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Solution

The fourth proportional to 722,483.47, 997,027.28 and 400,214.44 is: 552,295.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,483.47 : 997,027.28 = 400,214.44 : x
  2. Step 2: Convert to fraction form
    722,483.47/997,027.28 = 400,214.44/x
  3. Step 3: Cross multiply
    722,483.47x = 997,027.28 × 400,214.44
  4. Step 4: Simplify right side
    722,483.47x = 399,024,712,528.85
  5. Step 5: Solve for x
    x = 399,024,712,528.85/722,483.47
  6. Step 6: Final answer
    x = 552,295.98

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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.