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Finding the Fourth Proportional to 512,237.40, 766,800.90 and 456,250.20

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Solution

The fourth proportional to 512,237.40, 766,800.90 and 456,250.20 is: 682,990.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    512,237.40 : 766,800.90 = 456,250.20 : x
  2. Step 2: Convert to fraction form
    512,237.40/766,800.90 = 456,250.20/x
  3. Step 3: Cross multiply
    512,237.40x = 766,800.90 × 456,250.20
  4. Step 4: Simplify right side
    512,237.40x = 349,853,063,985.18
  5. Step 5: Solve for x
    x = 349,853,063,985.18/512,237.40
  6. Step 6: Final answer
    x = 682,990.08

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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.