Home / 1,457,389.36-2,185,919.88-392,509.36

Finding the Fourth Proportional to 1,457,389.36, 2,185,919.88 and 392,509.36

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Solution

The fourth proportional to 1,457,389.36, 2,185,919.88 and 392,509.36 is: 588,719.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,389.36 : 2,185,919.88 = 392,509.36 : x
  2. Step 2: Convert to fraction form
    1,457,389.36/2,185,919.88 = 392,509.36/x
  3. Step 3: Cross multiply
    1,457,389.36x = 2,185,919.88 × 392,509.36
  4. Step 4: Simplify right side
    1,457,389.36x = 857,994,013,110.08
  5. Step 5: Solve for x
    x = 857,994,013,110.08/1,457,389.36
  6. Step 6: Final answer
    x = 588,719.83

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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.