Home / 939,785.64-1,296,871.20-510,057.12

Finding the Fourth Proportional to 939,785.64, 1,296,871.20 and 510,057.12

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Solution

The fourth proportional to 939,785.64, 1,296,871.20 and 510,057.12 is: 703,860.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,785.64 : 1,296,871.20 = 510,057.12 : x
  2. Step 2: Convert to fraction form
    939,785.64/1,296,871.20 = 510,057.12/x
  3. Step 3: Cross multiply
    939,785.64x = 1,296,871.20 × 510,057.12
  4. Step 4: Simplify right side
    939,785.64x = 661,478,389,282.94
  5. Step 5: Solve for x
    x = 661,478,389,282.94/939,785.64
  6. Step 6: Final answer
    x = 703,860.92

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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.