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Finding the Fourth Proportional to 484,574.40, 668,706.84 and 283,370.40

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Solution

The fourth proportional to 484,574.40, 668,706.84 and 283,370.40 is: 391,047.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,574.40 : 668,706.84 = 283,370.40 : x
  2. Step 2: Convert to fraction form
    484,574.40/668,706.84 = 283,370.40/x
  3. Step 3: Cross multiply
    484,574.40x = 668,706.84 × 283,370.40
  4. Step 4: Simplify right side
    484,574.40x = 189,491,724,733.54
  5. Step 5: Solve for x
    x = 189,491,724,733.54/484,574.40
  6. Step 6: Final answer
    x = 391,047.74

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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.