Home / 559,633.40-772,271.58-304,979.08

Finding the Fourth Proportional to 559,633.40, 772,271.58 and 304,979.08

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Solution

The fourth proportional to 559,633.40, 772,271.58 and 304,979.08 is: 420,858.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,633.40 : 772,271.58 = 304,979.08 : x
  2. Step 2: Convert to fraction form
    559,633.40/772,271.58 = 304,979.08/x
  3. Step 3: Cross multiply
    559,633.40x = 772,271.58 × 304,979.08
  4. Step 4: Simplify right side
    559,633.40x = 235,526,675,978.55
  5. Step 5: Solve for x
    x = 235,526,675,978.55/559,633.40
  6. Step 6: Final answer
    x = 420,858.86

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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.