Home / 939,834.76-1,296,981.54-510,118.60

Finding the Fourth Proportional to 939,834.76, 1,296,981.54 and 510,118.60

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Solution

The fourth proportional to 939,834.76, 1,296,981.54 and 510,118.60 is: 703,968.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,834.76 : 1,296,981.54 = 510,118.60 : x
  2. Step 2: Convert to fraction form
    939,834.76/1,296,981.54 = 510,118.60/x
  3. Step 3: Cross multiply
    939,834.76x = 1,296,981.54 × 510,118.60
  4. Step 4: Simplify right side
    939,834.76x = 661,614,407,410.64
  5. Step 5: Solve for x
    x = 661,614,407,410.64/939,834.76
  6. Step 6: Final answer
    x = 703,968.86

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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.