Home / 1,274,328.45-1,911,492.68-432,880.20

Finding the Fourth Proportional to 1,274,328.45, 1,911,492.68 and 432,880.20

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Solution

The fourth proportional to 1,274,328.45, 1,911,492.68 and 432,880.20 is: 649,320.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,274,328.45 : 1,911,492.68 = 432,880.20 : x
  2. Step 2: Convert to fraction form
    1,274,328.45/1,911,492.68 = 432,880.20/x
  3. Step 3: Cross multiply
    1,274,328.45x = 1,911,492.68 × 432,880.20
  4. Step 4: Simplify right side
    1,274,328.45x = 827,447,331,452.54
  5. Step 5: Solve for x
    x = 827,447,331,452.54/1,274,328.45
  6. Step 6: Final answer
    x = 649,320.30

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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.