Home / 717,791.04-990,621.44-536,187.68

Finding the Fourth Proportional to 717,791.04, 990,621.44 and 536,187.68

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Solution

The fourth proportional to 717,791.04, 990,621.44 and 536,187.68 is: 739,991.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,791.04 : 990,621.44 = 536,187.68 : x
  2. Step 2: Convert to fraction form
    717,791.04/990,621.44 = 536,187.68/x
  3. Step 3: Cross multiply
    717,791.04x = 990,621.44 × 536,187.68
  4. Step 4: Simplify right side
    717,791.04x = 531,159,004,037.81
  5. Step 5: Solve for x
    x = 531,159,004,037.81/717,791.04
  6. Step 6: Final answer
    x = 739,991.13

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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.