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Finding the Fourth Proportional to 608,756.69, 840,109.01 and 336,820.17

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Solution

The fourth proportional to 608,756.69, 840,109.01 and 336,820.17 is: 464,825.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,756.69 : 840,109.01 = 336,820.17 : x
  2. Step 2: Convert to fraction form
    608,756.69/840,109.01 = 336,820.17/x
  3. Step 3: Cross multiply
    608,756.69x = 840,109.01 × 336,820.17
  4. Step 4: Simplify right side
    608,756.69x = 282,965,657,882.63
  5. Step 5: Solve for x
    x = 282,965,657,882.63/608,756.69
  6. Step 6: Final answer
    x = 464,825.55

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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.