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Finding the Fourth Proportional to 515,546.10, 774,011.70 and 302,532.30

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Solution

The fourth proportional to 515,546.10, 774,011.70 and 302,532.30 is: 454,204.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,546.10 : 774,011.70 = 302,532.30 : x
  2. Step 2: Convert to fraction form
    515,546.10/774,011.70 = 302,532.30/x
  3. Step 3: Cross multiply
    515,546.10x = 774,011.70 × 302,532.30
  4. Step 4: Simplify right side
    515,546.10x = 234,163,539,827.91
  5. Step 5: Solve for x
    x = 234,163,539,827.91/515,546.10
  6. Step 6: Final answer
    x = 454,204.85

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1.5x scale

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.