Home / 621,530,712.84-857,712,467.70-343,072,288.92

Finding the Fourth Proportional to 621,530,712.84, 857,712,467.70 and 343,072,288.92

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Solution

The fourth proportional to 621,530,712.84, 857,712,467.70 and 343,072,288.92 is: 473,439,805.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,530,712.84 : 857,712,467.70 = 343,072,288.92 : x
  2. Step 2: Convert to fraction form
    621,530,712.84/857,712,467.70 = 343,072,288.92/x
  3. Step 3: Cross multiply
    621,530,712.84x = 857,712,467.70 × 343,072,288.92
  4. Step 4: Simplify right side
    621,530,712.84x = 294,257,379,529,060,608
  5. Step 5: Solve for x
    x = 294,257,379,529,060,608/621,530,712.84
  6. Step 6: Final answer
    x = 473,439,805.07

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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.