Home / 1,139,468.16-1,707,996.96-429,188.88

Finding the Fourth Proportional to 1,139,468.16, 1,707,996.96 and 429,188.88

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Solution

The fourth proportional to 1,139,468.16, 1,707,996.96 and 429,188.88 is: 643,329.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,468.16 : 1,707,996.96 = 429,188.88 : x
  2. Step 2: Convert to fraction form
    1,139,468.16/1,707,996.96 = 429,188.88/x
  3. Step 3: Cross multiply
    1,139,468.16x = 1,707,996.96 × 429,188.88
  4. Step 4: Simplify right side
    1,139,468.16x = 733,053,302,305.81
  5. Step 5: Solve for x
    x = 733,053,302,305.81/1,139,468.16
  6. Step 6: Final answer
    x = 643,329.34

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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.