Home / 668,731.38-1,001,384.34-368,878.62

Finding the Fourth Proportional to 668,731.38, 1,001,384.34 and 368,878.62

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Solution

The fourth proportional to 668,731.38, 1,001,384.34 and 368,878.62 is: 552,373.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,731.38 : 1,001,384.34 = 368,878.62 : x
  2. Step 2: Convert to fraction form
    668,731.38/1,001,384.34 = 368,878.62/x
  3. Step 3: Cross multiply
    668,731.38x = 1,001,384.34 × 368,878.62
  4. Step 4: Simplify right side
    668,731.38x = 369,389,273,428.81
  5. Step 5: Solve for x
    x = 369,389,273,428.81/668,731.38
  6. Step 6: Final answer
    x = 552,373.17

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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.