Home / 1,210,025.60-1,815,038.40-422,057.60

Finding the Fourth Proportional to 1,210,025.60, 1,815,038.40 and 422,057.60

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Solution

The fourth proportional to 1,210,025.60, 1,815,038.40 and 422,057.60 is: 633,086.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,025.60 : 1,815,038.40 = 422,057.60 : x
  2. Step 2: Convert to fraction form
    1,210,025.60/1,815,038.40 = 422,057.60/x
  3. Step 3: Cross multiply
    1,210,025.60x = 1,815,038.40 × 422,057.60
  4. Step 4: Simplify right side
    1,210,025.60x = 766,050,751,011.84
  5. Step 5: Solve for x
    x = 766,050,751,011.84/1,210,025.60
  6. Step 6: Final answer
    x = 633,086.40

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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.