Home / 1,329,421.94-1,993,714.65-430,655.16

Finding the Fourth Proportional to 1,329,421.94, 1,993,714.65 and 430,655.16

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Solution

The fourth proportional to 1,329,421.94, 1,993,714.65 and 430,655.16 is: 645,847.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,329,421.94 : 1,993,714.65 = 430,655.16 : x
  2. Step 2: Convert to fraction form
    1,329,421.94/1,993,714.65 = 430,655.16/x
  3. Step 3: Cross multiply
    1,329,421.94x = 1,993,714.65 × 430,655.16
  4. Step 4: Simplify right side
    1,329,421.94x = 858,603,501,590.09
  5. Step 5: Solve for x
    x = 858,603,501,590.09/1,329,421.94
  6. Step 6: Final answer
    x = 645,847.25

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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.