Home / 1,390,352.20-2,085,528.30-965,199.40

Finding the Fourth Proportional to 1,390,352.20, 2,085,528.30 and 965,199.40

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Solution

The fourth proportional to 1,390,352.20, 2,085,528.30 and 965,199.40 is: 1,447,799.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,390,352.20 : 2,085,528.30 = 965,199.40 : x
  2. Step 2: Convert to fraction form
    1,390,352.20/2,085,528.30 = 965,199.40/x
  3. Step 3: Cross multiply
    1,390,352.20x = 2,085,528.30 × 965,199.40
  4. Step 4: Simplify right side
    1,390,352.20x = 2,012,950,663,843.02
  5. Step 5: Solve for x
    x = 2,012,950,663,843.02/1,390,352.20
  6. Step 6: Final answer
    x = 1,447,799.10

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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.