Home / 1,328,778.24-1,993,482.72-430,220.04

Finding the Fourth Proportional to 1,328,778.24, 1,993,482.72 and 430,220.04

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Solution

The fourth proportional to 1,328,778.24, 1,993,482.72 and 430,220.04 is: 645,432.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,328,778.24 : 1,993,482.72 = 430,220.04 : x
  2. Step 2: Convert to fraction form
    1,328,778.24/1,993,482.72 = 430,220.04/x
  3. Step 3: Cross multiply
    1,328,778.24x = 1,993,482.72 × 430,220.04
  4. Step 4: Simplify right side
    1,328,778.24x = 857,636,215,537.71
  5. Step 5: Solve for x
    x = 857,636,215,537.71/1,328,778.24
  6. Step 6: Final answer
    x = 645,432.16

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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.