Home / 578,678.40-867,326.40-298,051.20

Finding the Fourth Proportional to 578,678.40, 867,326.40 and 298,051.20

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Solution

The fourth proportional to 578,678.40, 867,326.40 and 298,051.20 is: 446,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,678.40 : 867,326.40 = 298,051.20 : x
  2. Step 2: Convert to fraction form
    578,678.40/867,326.40 = 298,051.20/x
  3. Step 3: Cross multiply
    578,678.40x = 867,326.40 × 298,051.20
  4. Step 4: Simplify right side
    578,678.40x = 258,507,674,311.68
  5. Step 5: Solve for x
    x = 258,507,674,311.68/578,678.40
  6. Step 6: Final answer
    x = 446,720.79

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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.