Home / 999,303.12-1,379,171.76-563,809.88

Finding the Fourth Proportional to 999,303.12, 1,379,171.76 and 563,809.88

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Solution

The fourth proportional to 999,303.12, 1,379,171.76 and 563,809.88 is: 778,132.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,303.12 : 1,379,171.76 = 563,809.88 : x
  2. Step 2: Convert to fraction form
    999,303.12/1,379,171.76 = 563,809.88/x
  3. Step 3: Cross multiply
    999,303.12x = 1,379,171.76 × 563,809.88
  4. Step 4: Simplify right side
    999,303.12x = 777,590,664,504.99
  5. Step 5: Solve for x
    x = 777,590,664,504.99/999,303.12
  6. Step 6: Final answer
    x = 778,132.93

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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.