Home / 559,789.14-772,509.04-305,140.34

Finding the Fourth Proportional to 559,789.14, 772,509.04 and 305,140.34

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Solution

The fourth proportional to 559,789.14, 772,509.04 and 305,140.34 is: 421,093.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,789.14 : 772,509.04 = 305,140.34 : x
  2. Step 2: Convert to fraction form
    559,789.14/772,509.04 = 305,140.34/x
  3. Step 3: Cross multiply
    559,789.14x = 772,509.04 × 305,140.34
  4. Step 4: Simplify right side
    559,789.14x = 235,723,671,118.67
  5. Step 5: Solve for x
    x = 235,723,671,118.67/559,789.14
  6. Step 6: Final answer
    x = 421,093.68

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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.