Home / 1,262,024.80-1,889,350.80-1,129,314.40

Finding the Fourth Proportional to 1,262,024.80, 1,889,350.80 and 1,129,314.40

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Solution

The fourth proportional to 1,262,024.80, 1,889,350.80 and 1,129,314.40 is: 1,690,672.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,024.80 : 1,889,350.80 = 1,129,314.40 : x
  2. Step 2: Convert to fraction form
    1,262,024.80/1,889,350.80 = 1,129,314.40/x
  3. Step 3: Cross multiply
    1,262,024.80x = 1,889,350.80 × 1,129,314.40
  4. Step 4: Simplify right side
    1,262,024.80x = 2,133,671,065,091.52
  5. Step 5: Solve for x
    x = 2,133,671,065,091.52/1,262,024.80
  6. Step 6: Final answer
    x = 1,690,672.85

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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.