Home / 547,128.90-820,692.57-304,124.43

Finding the Fourth Proportional to 547,128.90, 820,692.57 and 304,124.43

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Solution

The fourth proportional to 547,128.90, 820,692.57 and 304,124.43 is: 456,186.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,128.90 : 820,692.57 = 304,124.43 : x
  2. Step 2: Convert to fraction form
    547,128.90/820,692.57 = 304,124.43/x
  3. Step 3: Cross multiply
    547,128.90x = 820,692.57 × 304,124.43
  4. Step 4: Simplify right side
    547,128.90x = 249,592,660,056.49
  5. Step 5: Solve for x
    x = 249,592,660,056.49/547,128.90
  6. Step 6: Final answer
    x = 456,186.21

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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.