Home / 693,146.71-1,039,838.28-309,034.94

Finding the Fourth Proportional to 693,146.71, 1,039,838.28 and 309,034.94

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Solution

The fourth proportional to 693,146.71, 1,039,838.28 and 309,034.94 is: 463,605.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,146.71 : 1,039,838.28 = 309,034.94 : x
  2. Step 2: Convert to fraction form
    693,146.71/1,039,838.28 = 309,034.94/x
  3. Step 3: Cross multiply
    693,146.71x = 1,039,838.28 × 309,034.94
  4. Step 4: Simplify right side
    693,146.71x = 321,346,355,270.31
  5. Step 5: Solve for x
    x = 321,346,355,270.31/693,146.71
  6. Step 6: Final answer
    x = 463,605.11

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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.