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Finding the Fourth Proportional to 700,877.40, 967,211.21 and 378,587.51

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Solution

The fourth proportional to 700,877.40, 967,211.21 and 378,587.51 is: 522,450.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,877.40 : 967,211.21 = 378,587.51 : x
  2. Step 2: Convert to fraction form
    700,877.40/967,211.21 = 378,587.51/x
  3. Step 3: Cross multiply
    700,877.40x = 967,211.21 × 378,587.51
  4. Step 4: Simplify right side
    700,877.40x = 366,174,076,908.99
  5. Step 5: Solve for x
    x = 366,174,076,908.99/700,877.40
  6. Step 6: Final answer
    x = 522,450.97

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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.