Home / 939,569.20-1,296,598.92-509,838.40

Finding the Fourth Proportional to 939,569.20, 1,296,598.92 and 509,838.40

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Solution

The fourth proportional to 939,569.20, 1,296,598.92 and 509,838.40 is: 703,573.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    939,569.20 : 1,296,598.92 = 509,838.40 : x
  2. Step 2: Convert to fraction form
    939,569.20/1,296,598.92 = 509,838.40/x
  3. Step 3: Cross multiply
    939,569.20x = 1,296,598.92 × 509,838.40
  4. Step 4: Simplify right side
    939,569.20x = 661,055,918,814.53
  5. Step 5: Solve for x
    x = 661,055,918,814.53/939,569.20
  6. Step 6: Final answer
    x = 703,573.42

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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.