Home / 1,210,102.70-1,815,154.05-323,638.70

Finding the Fourth Proportional to 1,210,102.70, 1,815,154.05 and 323,638.70

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Solution

The fourth proportional to 1,210,102.70, 1,815,154.05 and 323,638.70 is: 485,458.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,102.70 : 1,815,154.05 = 323,638.70 : x
  2. Step 2: Convert to fraction form
    1,210,102.70/1,815,154.05 = 323,638.70/x
  3. Step 3: Cross multiply
    1,210,102.70x = 1,815,154.05 × 323,638.70
  4. Step 4: Simplify right side
    1,210,102.70x = 587,454,097,041.74
  5. Step 5: Solve for x
    x = 587,454,097,041.74/1,210,102.70
  6. Step 6: Final answer
    x = 485,458.05

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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.