Home / 711,008-1,066,905.64-425,998.16

Finding the Fourth Proportional to 711,008, 1,066,905.64 and 425,998.16

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Solution

The fourth proportional to 711,008, 1,066,905.64 and 425,998.16 is: 639,233.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,008 : 1,066,905.64 = 425,998.16 : x
  2. Step 2: Convert to fraction form
    711,008/1,066,905.64 = 425,998.16/x
  3. Step 3: Cross multiply
    711,008x = 1,066,905.64 × 425,998.16
  4. Step 4: Simplify right side
    711,008x = 454,499,839,533.62
  5. Step 5: Solve for x
    x = 454,499,839,533.62/711,008
  6. Step 6: Final answer
    x = 639,233.09

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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.