Home / 711,996.38-1,068,240.61-445,439.35

Finding the Fourth Proportional to 711,996.38, 1,068,240.61 and 445,439.35

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Solution

The fourth proportional to 711,996.38, 1,068,240.61 and 445,439.35 is: 668,312.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,996.38 : 1,068,240.61 = 445,439.35 : x
  2. Step 2: Convert to fraction form
    711,996.38/1,068,240.61 = 445,439.35/x
  3. Step 3: Cross multiply
    711,996.38x = 1,068,240.61 × 445,439.35
  4. Step 4: Simplify right side
    711,996.38x = 475,836,402,348.51
  5. Step 5: Solve for x
    x = 475,836,402,348.51/711,996.38
  6. Step 6: Final answer
    x = 668,312.95

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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.