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Finding the Fourth Proportional to 700,905.12, 967,248.32 and 378,615.18

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Solution

The fourth proportional to 700,905.12, 967,248.32 and 378,615.18 is: 522,488.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,905.12 : 967,248.32 = 378,615.18 : x
  2. Step 2: Convert to fraction form
    700,905.12/967,248.32 = 378,615.18/x
  3. Step 3: Cross multiply
    700,905.12x = 967,248.32 × 378,615.18
  4. Step 4: Simplify right side
    700,905.12x = 366,214,896,781.50
  5. Step 5: Solve for x
    x = 366,214,896,781.50/700,905.12
  6. Step 6: Final answer
    x = 522,488.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.