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Finding the Fourth Proportional to 530,696.80, 732,351.06 and 288,982.24

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Solution

The fourth proportional to 530,696.80, 732,351.06 and 288,982.24 is: 398,789.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,696.80 : 732,351.06 = 288,982.24 : x
  2. Step 2: Convert to fraction form
    530,696.80/732,351.06 = 288,982.24/x
  3. Step 3: Cross multiply
    530,696.80x = 732,351.06 × 288,982.24
  4. Step 4: Simplify right side
    530,696.80x = 211,636,449,785.17
  5. Step 5: Solve for x
    x = 211,636,449,785.17/530,696.80
  6. Step 6: Final answer
    x = 398,789.76

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1.5x scale

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.