Home / 690,923.04-1,036,384.56-269,903.68

Finding the Fourth Proportional to 690,923.04, 1,036,384.56 and 269,903.68

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Solution

The fourth proportional to 690,923.04, 1,036,384.56 and 269,903.68 is: 404,855.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,923.04 : 1,036,384.56 = 269,903.68 : x
  2. Step 2: Convert to fraction form
    690,923.04/1,036,384.56 = 269,903.68/x
  3. Step 3: Cross multiply
    690,923.04x = 1,036,384.56 × 269,903.68
  4. Step 4: Simplify right side
    690,923.04x = 279,724,006,639.18
  5. Step 5: Solve for x
    x = 279,724,006,639.18/690,923.04
  6. Step 6: Final answer
    x = 404,855.52

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Double scale
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Similar ratio
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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.