Home / 1,243,724.01-1,865,911.83-390,761.20

Finding the Fourth Proportional to 1,243,724.01, 1,865,911.83 and 390,761.20

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Solution

The fourth proportional to 1,243,724.01, 1,865,911.83 and 390,761.20 is: 586,244.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,724.01 : 1,865,911.83 = 390,761.20 : x
  2. Step 2: Convert to fraction form
    1,243,724.01/1,865,911.83 = 390,761.20/x
  3. Step 3: Cross multiply
    1,243,724.01x = 1,865,911.83 × 390,761.20
  4. Step 4: Simplify right side
    1,243,724.01x = 729,125,945,785.00
  5. Step 5: Solve for x
    x = 729,125,945,785.00/1,243,724.01
  6. Step 6: Final answer
    x = 586,244.17

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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.