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Finding the Fourth Proportional to 559,741.79, 772,441.85 and 305,092.98

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Solution

The fourth proportional to 559,741.79, 772,441.85 and 305,092.98 is: 421,027.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,741.79 : 772,441.85 = 305,092.98 : x
  2. Step 2: Convert to fraction form
    559,741.79/772,441.85 = 305,092.98/x
  3. Step 3: Cross multiply
    559,741.79x = 772,441.85 × 305,092.98
  4. Step 4: Simplify right side
    559,741.79x = 235,666,586,655.95
  5. Step 5: Solve for x
    x = 235,666,586,655.95/559,741.79
  6. Step 6: Final answer
    x = 421,027.32

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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.