Home / 1,012,219.88-1,396,815.18-553,358.12

Finding the Fourth Proportional to 1,012,219.88, 1,396,815.18 and 553,358.12

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Solution

The fourth proportional to 1,012,219.88, 1,396,815.18 and 553,358.12 is: 763,607.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,012,219.88 : 1,396,815.18 = 553,358.12 : x
  2. Step 2: Convert to fraction form
    1,012,219.88/1,396,815.18 = 553,358.12/x
  3. Step 3: Cross multiply
    1,012,219.88x = 1,396,815.18 × 553,358.12
  4. Step 4: Simplify right side
    1,012,219.88x = 772,939,021,992.26
  5. Step 5: Solve for x
    x = 772,939,021,992.26/1,012,219.88
  6. Step 6: Final answer
    x = 763,607.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.