Home / 405,180.90-606,969.45-355,317.30

Finding the Fourth Proportional to 405,180.90, 606,969.45 and 355,317.30

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Solution

The fourth proportional to 405,180.90, 606,969.45 and 355,317.30 is: 532,272.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,180.90 : 606,969.45 = 355,317.30 : x
  2. Step 2: Convert to fraction form
    405,180.90/606,969.45 = 355,317.30/x
  3. Step 3: Cross multiply
    405,180.90x = 606,969.45 × 355,317.30
  4. Step 4: Simplify right side
    405,180.90x = 215,666,746,156.49
  5. Step 5: Solve for x
    x = 215,666,746,156.49/405,180.90
  6. Step 6: Final answer
    x = 532,272.74

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1.5x scale

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.