Home / 558,379.13-837,235.78-378,685.49

Finding the Fourth Proportional to 558,379.13, 837,235.78 and 378,685.49

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Solution

The fourth proportional to 558,379.13, 837,235.78 and 378,685.49 is: 567,802.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,379.13 : 837,235.78 = 378,685.49 : x
  2. Step 2: Convert to fraction form
    558,379.13/837,235.78 = 378,685.49/x
  3. Step 3: Cross multiply
    558,379.13x = 837,235.78 × 378,685.49
  4. Step 4: Simplify right side
    558,379.13x = 317,049,041,594.83
  5. Step 5: Solve for x
    x = 317,049,041,594.83/558,379.13
  6. Step 6: Final answer
    x = 567,802.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.