Home / 939,647.64-1,296,723.25-509,931.48

Finding the Fourth Proportional to 939,647.64, 1,296,723.25 and 509,931.48

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Solution

The fourth proportional to 939,647.64, 1,296,723.25 and 509,931.48 is: 703,710.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,647.64 : 1,296,723.25 = 509,931.48 : x
  2. Step 2: Convert to fraction form
    939,647.64/1,296,723.25 = 509,931.48/x
  3. Step 3: Cross multiply
    939,647.64x = 1,296,723.25 × 509,931.48
  4. Step 4: Simplify right side
    939,647.64x = 661,240,006,022.91
  5. Step 5: Solve for x
    x = 661,240,006,022.91/939,647.64
  6. Step 6: Final answer
    x = 703,710.60

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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.