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Finding the Fourth Proportional to 697,462.73, 962,445.43 and 391,480.00

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Solution

The fourth proportional to 697,462.73, 962,445.43 and 391,480.00 is: 540,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,462.73 : 962,445.43 = 391,480.00 : x
  2. Step 2: Convert to fraction form
    697,462.73/962,445.43 = 391,480.00/x
  3. Step 3: Cross multiply
    697,462.73x = 962,445.43 × 391,480.00
  4. Step 4: Simplify right side
    697,462.73x = 376,778,132,124.17
  5. Step 5: Solve for x
    x = 376,778,132,124.17/697,462.73
  6. Step 6: Final answer
    x = 540,212.57

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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.