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Finding the Fourth Proportional to 697,448.94, 962,511.42 and 387,352.74

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Solution

The fourth proportional to 697,448.94, 962,511.42 and 387,352.74 is: 534,564.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    697,448.94 : 962,511.42 = 387,352.74 : x
  2. Step 2: Convert to fraction form
    697,448.94/962,511.42 = 387,352.74/x
  3. Step 3: Cross multiply
    697,448.94x = 962,511.42 × 387,352.74
  4. Step 4: Simplify right side
    697,448.94x = 372,831,435,818.29
  5. Step 5: Solve for x
    x = 372,831,435,818.29/697,448.94
  6. Step 6: Final answer
    x = 534,564.49

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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.