Home / 1,215,128.10-1,822,692.15-506,540.10

Finding the Fourth Proportional to 1,215,128.10, 1,822,692.15 and 506,540.10

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Solution

The fourth proportional to 1,215,128.10, 1,822,692.15 and 506,540.10 is: 759,810.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,128.10 : 1,822,692.15 = 506,540.10 : x
  2. Step 2: Convert to fraction form
    1,215,128.10/1,822,692.15 = 506,540.10/x
  3. Step 3: Cross multiply
    1,215,128.10x = 1,822,692.15 × 506,540.10
  4. Step 4: Simplify right side
    1,215,128.10x = 923,266,663,930.22
  5. Step 5: Solve for x
    x = 923,266,663,930.22/1,215,128.10
  6. Step 6: Final answer
    x = 759,810.15

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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.