Home / 578,664.40-867,305.40-298,037.20

Finding the Fourth Proportional to 578,664.40, 867,305.40 and 298,037.20

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Solution

The fourth proportional to 578,664.40, 867,305.40 and 298,037.20 is: 446,699.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,664.40 : 867,305.40 = 298,037.20 : x
  2. Step 2: Convert to fraction form
    578,664.40/867,305.40 = 298,037.20/x
  3. Step 3: Cross multiply
    578,664.40x = 867,305.40 × 298,037.20
  4. Step 4: Simplify right side
    578,664.40x = 258,489,272,960.88
  5. Step 5: Solve for x
    x = 258,489,272,960.88/578,664.40
  6. Step 6: Final answer
    x = 446,699.80

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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.