Home / 812,804.04-1,121,687.64-463,937.40

Finding the Fourth Proportional to 812,804.04, 1,121,687.64 and 463,937.40

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Solution

The fourth proportional to 812,804.04, 1,121,687.64 and 463,937.40 is: 640,243.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    812,804.04 : 1,121,687.64 = 463,937.40 : x
  2. Step 2: Convert to fraction form
    812,804.04/1,121,687.64 = 463,937.40/x
  3. Step 3: Cross multiply
    812,804.04x = 1,121,687.64 × 463,937.40
  4. Step 4: Simplify right side
    812,804.04x = 520,392,847,313.74
  5. Step 5: Solve for x
    x = 520,392,847,313.74/812,804.04
  6. Step 6: Final answer
    x = 640,243.92

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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.