Home / 719,320.36-1,078,636.28-339,924.46

Finding the Fourth Proportional to 719,320.36, 1,078,636.28 and 339,924.46

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Solution

The fourth proportional to 719,320.36, 1,078,636.28 and 339,924.46 is: 509,724.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,320.36 : 1,078,636.28 = 339,924.46 : x
  2. Step 2: Convert to fraction form
    719,320.36/1,078,636.28 = 339,924.46/x
  3. Step 3: Cross multiply
    719,320.36x = 1,078,636.28 × 339,924.46
  4. Step 4: Simplify right side
    719,320.36x = 366,654,855,015.41
  5. Step 5: Solve for x
    x = 366,654,855,015.41/719,320.36
  6. Step 6: Final answer
    x = 509,724.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.