Home / 690,710.96-1,036,232.32-264,239.80

Finding the Fourth Proportional to 690,710.96, 1,036,232.32 and 264,239.80

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Solution

The fourth proportional to 690,710.96, 1,036,232.32 and 264,239.80 is: 396,423.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,710.96 : 1,036,232.32 = 264,239.80 : x
  2. Step 2: Convert to fraction form
    690,710.96/1,036,232.32 = 264,239.80/x
  3. Step 3: Cross multiply
    690,710.96x = 1,036,232.32 × 264,239.80
  4. Step 4: Simplify right side
    690,710.96x = 273,813,820,990.34
  5. Step 5: Solve for x
    x = 273,813,820,990.34/690,710.96
  6. Step 6: Final answer
    x = 396,423.16

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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.