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Finding the Fourth Proportional to 560,258.64, 773,125.83 and 318,507.66

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Solution

The fourth proportional to 560,258.64, 773,125.83 and 318,507.66 is: 439,522.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,258.64 : 773,125.83 = 318,507.66 : x
  2. Step 2: Convert to fraction form
    560,258.64/773,125.83 = 318,507.66/x
  3. Step 3: Cross multiply
    560,258.64x = 773,125.83 × 318,507.66
  4. Step 4: Simplify right side
    560,258.64x = 246,246,498,998.86
  5. Step 5: Solve for x
    x = 246,246,498,998.86/560,258.64
  6. Step 6: Final answer
    x = 439,522.89

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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.