Home / 999,867.20-1,379,855.89-564,299.76

Finding the Fourth Proportional to 999,867.20, 1,379,855.89 and 564,299.76

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Solution

The fourth proportional to 999,867.20, 1,379,855.89 and 564,299.76 is: 778,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,867.20 : 1,379,855.89 = 564,299.76 : x
  2. Step 2: Convert to fraction form
    999,867.20/1,379,855.89 = 564,299.76/x
  3. Step 3: Cross multiply
    999,867.20x = 1,379,855.89 × 564,299.76
  4. Step 4: Simplify right side
    999,867.20x = 778,652,345,562.60
  5. Step 5: Solve for x
    x = 778,652,345,562.60/999,867.20
  6. Step 6: Final answer
    x = 778,755.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.