Home / 1,329,421.13-1,993,713.43-430,654.35

Finding the Fourth Proportional to 1,329,421.13, 1,993,713.43 and 430,654.35

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Solution

The fourth proportional to 1,329,421.13, 1,993,713.43 and 430,654.35 is: 645,846.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,421.13 : 1,993,713.43 = 430,654.35 : x
  2. Step 2: Convert to fraction form
    1,329,421.13/1,993,713.43 = 430,654.35/x
  3. Step 3: Cross multiply
    1,329,421.13x = 1,993,713.43 × 430,654.35
  4. Step 4: Simplify right side
    1,329,421.13x = 858,601,352,729.86
  5. Step 5: Solve for x
    x = 858,601,352,729.86/1,329,421.13
  6. Step 6: Final answer
    x = 645,846.02

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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.