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Finding the Fourth Proportional to 618,792, 928,343.52 and 175,560

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Solution

The fourth proportional to 618,792, 928,343.52 and 175,560 is: 263,384.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,792 : 928,343.52 = 175,560 : x
  2. Step 2: Convert to fraction form
    618,792/928,343.52 = 175,560/x
  3. Step 3: Cross multiply
    618,792x = 928,343.52 × 175,560
  4. Step 4: Simplify right side
    618,792x = 162,979,988,371.20
  5. Step 5: Solve for x
    x = 162,979,988,371.20/618,792
  6. Step 6: Final answer
    x = 263,384.12

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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.