Home / 699,564.98-1,047,665.88-399,134.72

Finding the Fourth Proportional to 699,564.98, 1,047,665.88 and 399,134.72

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Solution

The fourth proportional to 699,564.98, 1,047,665.88 and 399,134.72 is: 597,742.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,564.98 : 1,047,665.88 = 399,134.72 : x
  2. Step 2: Convert to fraction form
    699,564.98/1,047,665.88 = 399,134.72/x
  3. Step 3: Cross multiply
    699,564.98x = 1,047,665.88 × 399,134.72
  4. Step 4: Simplify right side
    699,564.98x = 418,159,830,286.52
  5. Step 5: Solve for x
    x = 418,159,830,286.52/699,564.98
  6. Step 6: Final answer
    x = 597,742.66

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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.