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Finding the Fourth Proportional to 440,335.32, 607,730.22 and 355,188.12

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Solution

The fourth proportional to 440,335.32, 607,730.22 and 355,188.12 is: 490,214.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,335.32 : 607,730.22 = 355,188.12 : x
  2. Step 2: Convert to fraction form
    440,335.32/607,730.22 = 355,188.12/x
  3. Step 3: Cross multiply
    440,335.32x = 607,730.22 × 355,188.12
  4. Step 4: Simplify right side
    440,335.32x = 215,858,554,308.99
  5. Step 5: Solve for x
    x = 215,858,554,308.99/440,335.32
  6. Step 6: Final answer
    x = 490,214.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.