Home / 699,139.20-1,049,486.40-384,211.20

Finding the Fourth Proportional to 699,139.20, 1,049,486.40 and 384,211.20

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Solution

The fourth proportional to 699,139.20, 1,049,486.40 and 384,211.20 is: 576,744.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,139.20 : 1,049,486.40 = 384,211.20 : x
  2. Step 2: Convert to fraction form
    699,139.20/1,049,486.40 = 384,211.20/x
  3. Step 3: Cross multiply
    699,139.20x = 1,049,486.40 × 384,211.20
  4. Step 4: Simplify right side
    699,139.20x = 403,224,429,127.68
  5. Step 5: Solve for x
    x = 403,224,429,127.68/699,139.20
  6. Step 6: Final answer
    x = 576,744.13

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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.