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Finding the Fourth Proportional to 559,998.96, 772,796.72 and 305,349.52

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Solution

The fourth proportional to 559,998.96, 772,796.72 and 305,349.52 is: 421,381.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,998.96 : 772,796.72 = 305,349.52 : x
  2. Step 2: Convert to fraction form
    559,998.96/772,796.72 = 305,349.52/x
  3. Step 3: Cross multiply
    559,998.96x = 772,796.72 × 305,349.52
  4. Step 4: Simplify right side
    559,998.96x = 235,973,107,509.57
  5. Step 5: Solve for x
    x = 235,973,107,509.57/559,998.96
  6. Step 6: Final answer
    x = 421,381.33

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1.5x scale

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.