Home / 1,021,331.02-1,531,996.51-311,352.91

Finding the Fourth Proportional to 1,021,331.02, 1,531,996.51 and 311,352.91

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Solution

The fourth proportional to 1,021,331.02, 1,531,996.51 and 311,352.91 is: 467,029.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,021,331.02 : 1,531,996.51 = 311,352.91 : x
  2. Step 2: Convert to fraction form
    1,021,331.02/1,531,996.51 = 311,352.91/x
  3. Step 3: Cross multiply
    1,021,331.02x = 1,531,996.51 × 311,352.91
  4. Step 4: Simplify right side
    1,021,331.02x = 476,991,571,498.34
  5. Step 5: Solve for x
    x = 476,991,571,498.34/1,021,331.02
  6. Step 6: Final answer
    x = 467,029.36

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Double scale
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Similar ratio
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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.