Home / 939,632.68-1,296,693.93-509,912.83

Finding the Fourth Proportional to 939,632.68, 1,296,693.93 and 509,912.83

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Solution

The fourth proportional to 939,632.68, 1,296,693.93 and 509,912.83 is: 703,680.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,632.68 : 1,296,693.93 = 509,912.83 : x
  2. Step 2: Convert to fraction form
    939,632.68/1,296,693.93 = 509,912.83/x
  3. Step 3: Cross multiply
    939,632.68x = 1,296,693.93 × 509,912.83
  4. Step 4: Simplify right side
    939,632.68x = 661,200,871,490.12
  5. Step 5: Solve for x
    x = 661,200,871,490.12/939,632.68
  6. Step 6: Final answer
    x = 703,680.16

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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.