Home / 577,055.12-796,311.28-318,918.72

Finding the Fourth Proportional to 577,055.12, 796,311.28 and 318,918.72

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Solution

The fourth proportional to 577,055.12, 796,311.28 and 318,918.72 is: 440,094.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    577,055.12 : 796,311.28 = 318,918.72 : x
  2. Step 2: Convert to fraction form
    577,055.12/796,311.28 = 318,918.72/x
  3. Step 3: Cross multiply
    577,055.12x = 796,311.28 × 318,918.72
  4. Step 4: Simplify right side
    577,055.12x = 253,958,573,341.87
  5. Step 5: Solve for x
    x = 253,958,573,341.87/577,055.12
  6. Step 6: Final answer
    x = 440,094.14

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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.