Home / 1,429,383.40-2,140,964.70-867,437.80

Finding the Fourth Proportional to 1,429,383.40, 2,140,964.70 and 867,437.80

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Solution

The fourth proportional to 1,429,383.40, 2,140,964.70 and 867,437.80 is: 1,299,269.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,429,383.40 : 2,140,964.70 = 867,437.80 : x
  2. Step 2: Convert to fraction form
    1,429,383.40/2,140,964.70 = 867,437.80/x
  3. Step 3: Cross multiply
    1,429,383.40x = 2,140,964.70 × 867,437.80
  4. Step 4: Simplify right side
    1,429,383.40x = 1,857,153,709,245.66
  5. Step 5: Solve for x
    x = 1,857,153,709,245.66/1,429,383.40
  6. Step 6: Final answer
    x = 1,299,269.12

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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.