Home / 712,135.96-1,068,201.06-291,411.64

Finding the Fourth Proportional to 712,135.96, 1,068,201.06 and 291,411.64

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Solution

The fourth proportional to 712,135.96, 1,068,201.06 and 291,411.64 is: 437,116.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,135.96 : 1,068,201.06 = 291,411.64 : x
  2. Step 2: Convert to fraction form
    712,135.96/1,068,201.06 = 291,411.64/x
  3. Step 3: Cross multiply
    712,135.96x = 1,068,201.06 × 291,411.64
  4. Step 4: Simplify right side
    712,135.96x = 311,286,222,744.34
  5. Step 5: Solve for x
    x = 311,286,222,744.34/712,135.96
  6. Step 6: Final answer
    x = 437,116.28

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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.