Home / 806,562.30-1,210,499.55-780,318.30

Finding the Fourth Proportional to 806,562.30, 1,210,499.55 and 780,318.30

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Solution

The fourth proportional to 806,562.30, 1,210,499.55 and 780,318.30 is: 1,171,112.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,562.30 : 1,210,499.55 = 780,318.30 : x
  2. Step 2: Convert to fraction form
    806,562.30/1,210,499.55 = 780,318.30/x
  3. Step 3: Cross multiply
    806,562.30x = 1,210,499.55 × 780,318.30
  4. Step 4: Simplify right side
    806,562.30x = 944,574,951,006.77
  5. Step 5: Solve for x
    x = 944,574,951,006.77/806,562.30
  6. Step 6: Final answer
    x = 1,171,112.20

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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.