Home / 834,311.49-1,251,464.81-721,656.69

Finding the Fourth Proportional to 834,311.49, 1,251,464.81 and 721,656.69

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Solution

The fourth proportional to 834,311.49, 1,251,464.81 and 721,656.69 is: 1,082,482.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    834,311.49 : 1,251,464.81 = 721,656.69 : x
  2. Step 2: Convert to fraction form
    834,311.49/1,251,464.81 = 721,656.69/x
  3. Step 3: Cross multiply
    834,311.49x = 1,251,464.81 × 721,656.69
  4. Step 4: Simplify right side
    834,311.49x = 903,127,948,827.80
  5. Step 5: Solve for x
    x = 903,127,948,827.80/834,311.49
  6. Step 6: Final answer
    x = 1,082,482.93

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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.