Home / 1,329,422.13-1,993,714.93-430,655.35

Finding the Fourth Proportional to 1,329,422.13, 1,993,714.93 and 430,655.35

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Solution

The fourth proportional to 1,329,422.13, 1,993,714.93 and 430,655.35 is: 645,847.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,422.13 : 1,993,714.93 = 430,655.35 : x
  2. Step 2: Convert to fraction form
    1,329,422.13/1,993,714.93 = 430,655.35/x
  3. Step 3: Cross multiply
    1,329,422.13x = 1,993,714.93 × 430,655.35
  4. Step 4: Simplify right side
    1,329,422.13x = 858,604,000,979.38
  5. Step 5: Solve for x
    x = 858,604,000,979.38/1,329,422.13
  6. Step 6: Final answer
    x = 645,847.53

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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.