Home / 939,315.58-1,296,258.01-509,595.71

Finding the Fourth Proportional to 939,315.58, 1,296,258.01 and 509,595.71

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Solution

The fourth proportional to 939,315.58, 1,296,258.01 and 509,595.71 is: 703,243.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,315.58 : 1,296,258.01 = 509,595.71 : x
  2. Step 2: Convert to fraction form
    939,315.58/1,296,258.01 = 509,595.71/x
  3. Step 3: Cross multiply
    939,315.58x = 1,296,258.01 × 509,595.71
  4. Step 4: Simplify right side
    939,315.58x = 660,567,520,949.14
  5. Step 5: Solve for x
    x = 660,567,520,949.14/939,315.58
  6. Step 6: Final answer
    x = 703,243.44

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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.