Home / 1,087,011.84-1,630,621.44-422,215.68

Finding the Fourth Proportional to 1,087,011.84, 1,630,621.44 and 422,215.68

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Solution

The fourth proportional to 1,087,011.84, 1,630,621.44 and 422,215.68 is: 633,363.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,011.84 : 1,630,621.44 = 422,215.68 : x
  2. Step 2: Convert to fraction form
    1,087,011.84/1,630,621.44 = 422,215.68/x
  3. Step 3: Cross multiply
    1,087,011.84x = 1,630,621.44 × 422,215.68
  4. Step 4: Simplify right side
    1,087,011.84x = 688,473,940,112.18
  5. Step 5: Solve for x
    x = 688,473,940,112.18/1,087,011.84
  6. Step 6: Final answer
    x = 633,363.79

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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.