Home / 1,409,217.76-2,114,089.95-640,771.90

Finding the Fourth Proportional to 1,409,217.76, 2,114,089.95 and 640,771.90

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Solution

The fourth proportional to 1,409,217.76, 2,114,089.95 and 640,771.90 is: 961,277.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,409,217.76 : 2,114,089.95 = 640,771.90 : x
  2. Step 2: Convert to fraction form
    1,409,217.76/2,114,089.95 = 640,771.90/x
  3. Step 3: Cross multiply
    1,409,217.76x = 2,114,089.95 × 640,771.90
  4. Step 4: Simplify right side
    1,409,217.76x = 1,354,649,423,461.96
  5. Step 5: Solve for x
    x = 1,354,649,423,461.96/1,409,217.76
  6. Step 6: Final answer
    x = 961,277.57

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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.