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Finding the Fourth Proportional to 510,659.40, 766,910.70 and 370,576.20

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Solution

The fourth proportional to 510,659.40, 766,910.70 and 370,576.20 is: 556,533.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    510,659.40 : 766,910.70 = 370,576.20 : x
  2. Step 2: Convert to fraction form
    510,659.40/766,910.70 = 370,576.20/x
  3. Step 3: Cross multiply
    510,659.40x = 766,910.70 × 370,576.20
  4. Step 4: Simplify right side
    510,659.40x = 284,198,852,945.34
  5. Step 5: Solve for x
    x = 284,198,852,945.34/510,659.40
  6. Step 6: Final answer
    x = 556,533.09

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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.