Home / 647,430.20-969,833.10-366,619.40

Finding the Fourth Proportional to 647,430.20, 969,833.10 and 366,619.40

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Solution

The fourth proportional to 647,430.20, 969,833.10 and 366,619.40 is: 549,186.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,430.20 : 969,833.10 = 366,619.40 : x
  2. Step 2: Convert to fraction form
    647,430.20/969,833.10 = 366,619.40/x
  3. Step 3: Cross multiply
    647,430.20x = 969,833.10 × 366,619.40
  4. Step 4: Simplify right side
    647,430.20x = 355,559,629,222.14
  5. Step 5: Solve for x
    x = 355,559,629,222.14/647,430.20
  6. Step 6: Final answer
    x = 549,186.04

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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.