Home / 684,988.09-945,260.34-379,077.41

Finding the Fourth Proportional to 684,988.09, 945,260.34 and 379,077.41

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Solution

The fourth proportional to 684,988.09, 945,260.34 and 379,077.41 is: 523,113.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,988.09 : 945,260.34 = 379,077.41 : x
  2. Step 2: Convert to fraction form
    684,988.09/945,260.34 = 379,077.41/x
  3. Step 3: Cross multiply
    684,988.09x = 945,260.34 × 379,077.41
  4. Step 4: Simplify right side
    684,988.09x = 358,326,841,462.92
  5. Step 5: Solve for x
    x = 358,326,841,462.92/684,988.09
  6. Step 6: Final answer
    x = 523,113.98

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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.