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Finding the Fourth Proportional to 586,388.92, 809,148.30 and 328,279.96

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Solution

The fourth proportional to 586,388.92, 809,148.30 and 328,279.96 is: 452,988.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    586,388.92 : 809,148.30 = 328,279.96 : x
  2. Step 2: Convert to fraction form
    586,388.92/809,148.30 = 328,279.96/x
  3. Step 3: Cross multiply
    586,388.92x = 809,148.30 × 328,279.96
  4. Step 4: Simplify right side
    586,388.92x = 265,627,171,558.07
  5. Step 5: Solve for x
    x = 265,627,171,558.07/586,388.92
  6. Step 6: Final answer
    x = 452,988.05

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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.