Home / 1,318,732-1,977,920.88-372,178.72

Finding the Fourth Proportional to 1,318,732, 1,977,920.88 and 372,178.72

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Solution

The fourth proportional to 1,318,732, 1,977,920.88 and 372,178.72 is: 558,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,732 : 1,977,920.88 = 372,178.72 : x
  2. Step 2: Convert to fraction form
    1,318,732/1,977,920.88 = 372,178.72/x
  3. Step 3: Cross multiply
    1,318,732x = 1,977,920.88 × 372,178.72
  4. Step 4: Simplify right side
    1,318,732x = 736,140,061,379.67
  5. Step 5: Solve for x
    x = 736,140,061,379.67/1,318,732
  6. Step 6: Final answer
    x = 558,218.09

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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.