Home / 741,640.20-1,112,460.30-631,415.40

Finding the Fourth Proportional to 741,640.20, 1,112,460.30 and 631,415.40

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Solution

The fourth proportional to 741,640.20, 1,112,460.30 and 631,415.40 is: 947,123.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    741,640.20 : 1,112,460.30 = 631,415.40 : x
  2. Step 2: Convert to fraction form
    741,640.20/1,112,460.30 = 631,415.40/x
  3. Step 3: Cross multiply
    741,640.20x = 1,112,460.30 × 631,415.40
  4. Step 4: Simplify right side
    741,640.20x = 702,424,565,308.62
  5. Step 5: Solve for x
    x = 702,424,565,308.62/741,640.20
  6. Step 6: Final answer
    x = 947,123.10

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Double scale
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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.