Home / 939,559.20-1,296,585.12-509,828.40

Finding the Fourth Proportional to 939,559.20, 1,296,585.12 and 509,828.40

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Solution

The fourth proportional to 939,559.20, 1,296,585.12 and 509,828.40 is: 703,559.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,559.20 : 1,296,585.12 = 509,828.40 : x
  2. Step 2: Convert to fraction form
    939,559.20/1,296,585.12 = 509,828.40/x
  3. Step 3: Cross multiply
    939,559.20x = 1,296,585.12 × 509,828.40
  4. Step 4: Simplify right side
    939,559.20x = 661,035,917,193.41
  5. Step 5: Solve for x
    x = 661,035,917,193.41/939,559.20
  6. Step 6: Final answer
    x = 703,559.62

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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.