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Finding the Fourth Proportional to 888,859.80, 1,333,484.10 and 289,848.60

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Solution

The fourth proportional to 888,859.80, 1,333,484.10 and 289,848.60 is: 434,836.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    888,859.80 : 1,333,484.10 = 289,848.60 : x
  2. Step 2: Convert to fraction form
    888,859.80/1,333,484.10 = 289,848.60/x
  3. Step 3: Cross multiply
    888,859.80x = 1,333,484.10 × 289,848.60
  4. Step 4: Simplify right side
    888,859.80x = 386,508,499,507.26
  5. Step 5: Solve for x
    x = 386,508,499,507.26/888,859.80
  6. Step 6: Final answer
    x = 434,836.29

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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.