Home / 645,943.43-968,263.81-406,228.64

Finding the Fourth Proportional to 645,943.43, 968,263.81 and 406,228.64

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Solution

The fourth proportional to 645,943.43, 968,263.81 and 406,228.64 is: 608,933.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,943.43 : 968,263.81 = 406,228.64 : x
  2. Step 2: Convert to fraction form
    645,943.43/968,263.81 = 406,228.64/x
  3. Step 3: Cross multiply
    645,943.43x = 968,263.81 × 406,228.64
  4. Step 4: Simplify right side
    645,943.43x = 393,336,492,102.61
  5. Step 5: Solve for x
    x = 393,336,492,102.61/645,943.43
  6. Step 6: Final answer
    x = 608,933.34

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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.