Home / 1,240,800.99-1,862,127.90-921,689.70

Finding the Fourth Proportional to 1,240,800.99, 1,862,127.90 and 921,689.70

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Solution

The fourth proportional to 1,240,800.99, 1,862,127.90 and 921,689.70 is: 1,383,222.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,240,800.99 : 1,862,127.90 = 921,689.70 : x
  2. Step 2: Convert to fraction form
    1,240,800.99/1,862,127.90 = 921,689.70/x
  3. Step 3: Cross multiply
    1,240,800.99x = 1,862,127.90 × 921,689.70
  4. Step 4: Simplify right side
    1,240,800.99x = 1,716,304,105,512.63
  5. Step 5: Solve for x
    x = 1,716,304,105,512.63/1,240,800.99
  6. Step 6: Final answer
    x = 1,383,222.71

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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.