Home / 690,361.16-1,035,659.82-316,416.20

Finding the Fourth Proportional to 690,361.16, 1,035,659.82 and 316,416.20

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Solution

The fourth proportional to 690,361.16, 1,035,659.82 and 316,416.20 is: 474,678.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,361.16 : 1,035,659.82 = 316,416.20 : x
  2. Step 2: Convert to fraction form
    690,361.16/1,035,659.82 = 316,416.20/x
  3. Step 3: Cross multiply
    690,361.16x = 1,035,659.82 × 316,416.20
  4. Step 4: Simplify right side
    690,361.16x = 327,699,544,737.08
  5. Step 5: Solve for x
    x = 327,699,544,737.08/690,361.16
  6. Step 6: Final answer
    x = 474,678.42

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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.