Home / 1,288,499.40-1,930,905.90-948,889.80

Finding the Fourth Proportional to 1,288,499.40, 1,930,905.90 and 948,889.80

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Solution

The fourth proportional to 1,288,499.40, 1,930,905.90 and 948,889.80 is: 1,421,977.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,499.40 : 1,930,905.90 = 948,889.80 : x
  2. Step 2: Convert to fraction form
    1,288,499.40/1,930,905.90 = 948,889.80/x
  3. Step 3: Cross multiply
    1,288,499.40x = 1,930,905.90 × 948,889.80
  4. Step 4: Simplify right side
    1,288,499.40x = 1,832,216,913,269.82
  5. Step 5: Solve for x
    x = 1,832,216,913,269.82/1,288,499.40
  6. Step 6: Final answer
    x = 1,421,977.31

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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.