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Finding the Fourth Proportional to 377,855.40, 566,783.10 and 328,647.90

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Solution

The fourth proportional to 377,855.40, 566,783.10 and 328,647.90 is: 492,971.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,855.40 : 566,783.10 = 328,647.90 : x
  2. Step 2: Convert to fraction form
    377,855.40/566,783.10 = 328,647.90/x
  3. Step 3: Cross multiply
    377,855.40x = 566,783.10 × 328,647.90
  4. Step 4: Simplify right side
    377,855.40x = 186,272,075,570.49
  5. Step 5: Solve for x
    x = 186,272,075,570.49/377,855.40
  6. Step 6: Final answer
    x = 492,971.85

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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.