Home / 1,087,037.96-1,630,554.78-288,399.56

Finding the Fourth Proportional to 1,087,037.96, 1,630,554.78 and 288,399.56

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Solution

The fourth proportional to 1,087,037.96, 1,630,554.78 and 288,399.56 is: 432,598.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,037.96 : 1,630,554.78 = 288,399.56 : x
  2. Step 2: Convert to fraction form
    1,087,037.96/1,630,554.78 = 288,399.56/x
  3. Step 3: Cross multiply
    1,087,037.96x = 1,630,554.78 × 288,399.56
  4. Step 4: Simplify right side
    1,087,037.96x = 470,251,281,107.90
  5. Step 5: Solve for x
    x = 470,251,281,107.90/1,087,037.96
  6. Step 6: Final answer
    x = 432,598.77

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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.