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Finding the Fourth Proportional to 607,783.20, 911,674.80 and 537,799.20

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Solution

The fourth proportional to 607,783.20, 911,674.80 and 537,799.20 is: 806,698.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,783.20 : 911,674.80 = 537,799.20 : x
  2. Step 2: Convert to fraction form
    607,783.20/911,674.80 = 537,799.20/x
  3. Step 3: Cross multiply
    607,783.20x = 911,674.80 × 537,799.20
  4. Step 4: Simplify right side
    607,783.20x = 490,297,978,100.16
  5. Step 5: Solve for x
    x = 490,297,978,100.16/607,783.20
  6. Step 6: Final answer
    x = 806,698.80

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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.