Home / 540,080.20-808,565.10-330,128.20

Finding the Fourth Proportional to 540,080.20, 808,565.10 and 330,128.20

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Solution

The fourth proportional to 540,080.20, 808,565.10 and 330,128.20 is: 494,241.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,080.20 : 808,565.10 = 330,128.20 : x
  2. Step 2: Convert to fraction form
    540,080.20/808,565.10 = 330,128.20/x
  3. Step 3: Cross multiply
    540,080.20x = 808,565.10 × 330,128.20
  4. Step 4: Simplify right side
    540,080.20x = 266,930,141,045.82
  5. Step 5: Solve for x
    x = 266,930,141,045.82/540,080.20
  6. Step 6: Final answer
    x = 494,241.67

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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.