Home / 1,020,498.82-1,531,015.16-380,808.15

Finding the Fourth Proportional to 1,020,498.82, 1,531,015.16 and 380,808.15

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Solution

The fourth proportional to 1,020,498.82, 1,531,015.16 and 380,808.15 is: 571,311.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,498.82 : 1,531,015.16 = 380,808.15 : x
  2. Step 2: Convert to fraction form
    1,020,498.82/1,531,015.16 = 380,808.15/x
  3. Step 3: Cross multiply
    1,020,498.82x = 1,531,015.16 × 380,808.15
  4. Step 4: Simplify right side
    1,020,498.82x = 583,023,051,668.17
  5. Step 5: Solve for x
    x = 583,023,051,668.17/1,020,498.82
  6. Step 6: Final answer
    x = 571,311.83

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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.