Home / 929,709.40-1,394,564.10-646,274.20

Finding the Fourth Proportional to 929,709.40, 1,394,564.10 and 646,274.20

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Solution

The fourth proportional to 929,709.40, 1,394,564.10 and 646,274.20 is: 969,411.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    929,709.40 : 1,394,564.10 = 646,274.20 : x
  2. Step 2: Convert to fraction form
    929,709.40/1,394,564.10 = 646,274.20/x
  3. Step 3: Cross multiply
    929,709.40x = 1,394,564.10 × 646,274.20
  4. Step 4: Simplify right side
    929,709.40x = 901,270,798,076.22
  5. Step 5: Solve for x
    x = 901,270,798,076.22/929,709.40
  6. Step 6: Final answer
    x = 969,411.30

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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.