Home / 1,457,165.76-2,185,826.40-459,816

Finding the Fourth Proportional to 1,457,165.76, 2,185,826.40 and 459,816

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Solution

The fourth proportional to 1,457,165.76, 2,185,826.40 and 459,816 is: 689,748.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,457,165.76 : 2,185,826.40 = 459,816 : x
  2. Step 2: Convert to fraction form
    1,457,165.76/2,185,826.40 = 459,816/x
  3. Step 3: Cross multiply
    1,457,165.76x = 2,185,826.40 × 459,816
  4. Step 4: Simplify right side
    1,457,165.76x = 1,005,077,951,942.40
  5. Step 5: Solve for x
    x = 1,005,077,951,942.40/1,457,165.76
  6. Step 6: Final answer
    x = 689,748.54

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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.