Home / 939,615.76-1,296,673.14-509,895.78

Finding the Fourth Proportional to 939,615.76, 1,296,673.14 and 509,895.78

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Solution

The fourth proportional to 939,615.76, 1,296,673.14 and 509,895.78 is: 703,658.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,615.76 : 1,296,673.14 = 509,895.78 : x
  2. Step 2: Convert to fraction form
    939,615.76/1,296,673.14 = 509,895.78/x
  3. Step 3: Cross multiply
    939,615.76x = 1,296,673.14 × 509,895.78
  4. Step 4: Simplify right side
    939,615.76x = 661,168,162,125.35
  5. Step 5: Solve for x
    x = 661,168,162,125.35/939,615.76
  6. Step 6: Final answer
    x = 703,658.02

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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.