Home / 816,015.40-1,224,023.10-216,975.40

Finding the Fourth Proportional to 816,015.40, 1,224,023.10 and 216,975.40

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Solution

The fourth proportional to 816,015.40, 1,224,023.10 and 216,975.40 is: 325,463.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    816,015.40 : 1,224,023.10 = 216,975.40 : x
  2. Step 2: Convert to fraction form
    816,015.40/1,224,023.10 = 216,975.40/x
  3. Step 3: Cross multiply
    816,015.40x = 1,224,023.10 × 216,975.40
  4. Step 4: Simplify right side
    816,015.40x = 265,582,901,731.74
  5. Step 5: Solve for x
    x = 265,582,901,731.74/816,015.40
  6. Step 6: Final answer
    x = 325,463.10

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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.