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Finding the Fourth Proportional to 559,451.96, 839,090.80 and 306,856.72

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Solution

The fourth proportional to 559,451.96, 839,090.80 and 306,856.72 is: 460,237.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,451.96 : 839,090.80 = 306,856.72 : x
  2. Step 2: Convert to fraction form
    559,451.96/839,090.80 = 306,856.72/x
  3. Step 3: Cross multiply
    559,451.96x = 839,090.80 × 306,856.72
  4. Step 4: Simplify right side
    559,451.96x = 257,480,650,670.18
  5. Step 5: Solve for x
    x = 257,480,650,670.18/559,451.96
  6. Step 6: Final answer
    x = 460,237.28

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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.