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Finding the Fourth Proportional to 704,995.27, 973,146.20 and 418,515.58

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Solution

The fourth proportional to 704,995.27, 973,146.20 and 418,515.58 is: 577,701.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,995.27 : 973,146.20 = 418,515.58 : x
  2. Step 2: Convert to fraction form
    704,995.27/973,146.20 = 418,515.58/x
  3. Step 3: Cross multiply
    704,995.27x = 973,146.20 × 418,515.58
  4. Step 4: Simplify right side
    704,995.27x = 407,276,846,317.80
  5. Step 5: Solve for x
    x = 407,276,846,317.80/704,995.27
  6. Step 6: Final answer
    x = 577,701.53

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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.