Home / 1,143,243.15-1,714,865.38-290,378.76

Finding the Fourth Proportional to 1,143,243.15, 1,714,865.38 and 290,378.76

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Solution

The fourth proportional to 1,143,243.15, 1,714,865.38 and 290,378.76 is: 435,568.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,143,243.15 : 1,714,865.38 = 290,378.76 : x
  2. Step 2: Convert to fraction form
    1,143,243.15/1,714,865.38 = 290,378.76/x
  3. Step 3: Cross multiply
    1,143,243.15x = 1,714,865.38 × 290,378.76
  4. Step 4: Simplify right side
    1,143,243.15x = 497,960,475,454.64
  5. Step 5: Solve for x
    x = 497,960,475,454.64/1,143,243.15
  6. Step 6: Final answer
    x = 435,568.30

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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.