Home / 748,986.32-1,123,435.56-216,495.56

Finding the Fourth Proportional to 748,986.32, 1,123,435.56 and 216,495.56

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Solution

The fourth proportional to 748,986.32, 1,123,435.56 and 216,495.56 is: 324,730.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,986.32 : 1,123,435.56 = 216,495.56 : x
  2. Step 2: Convert to fraction form
    748,986.32/1,123,435.56 = 216,495.56/x
  3. Step 3: Cross multiply
    748,986.32x = 1,123,435.56 × 216,495.56
  4. Step 4: Simplify right side
    748,986.32x = 243,218,810,686.11
  5. Step 5: Solve for x
    x = 243,218,810,686.11/748,986.32
  6. Step 6: Final answer
    x = 324,730.64

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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.